The Dr. Brewer Pregnancy Diet
Underweight Babies
Home
The Diet
Weekly Record
Physiology
FAQ
Principles
Special Needs
No-Risk Diet
Weight Gain
Salt
Water
Bed Rest
Herbal Diuretics
Vegetarian
Twin Pregnancy
The Twin Diet
Premature Labor
Swelling
Blood Pressure
Pre-eclampsia
HELLP/Hemorrhage
Mistaken Diagnoses
IUGR
Underweight Babies
Obesity
Anemias
Gestational Diabetes
Abruption
Brewer/ACOG
Topics
News
Stories
Inaccuracies
Research
In Memory
Letters
History
Suppression
Resources
Other Issues
Morning Sickness
Colds and Flu
About
Contact
Registry
Registry II
Registry III

Low Birth Weight Babies

Special Health Alert!

For those of you who live North of the equator and are entering a season of hot and humid weather and increased outdoor activity, please be aware that extra loss of salt (through sweat) and extra burning of calories can trigger a rising BP, and other pre-eclampsia symptoms. Please see the "Special Needs" page and the bottom of the "Weekly Record" page for ideas on how to compensate for these losses and thus help yourself to prevent pre-eclampsia and other complications related to low blood volume. Please see the "FAQ" page for information about why just drinking extra water probably won't be enough to keep your blood volume adequately expanded for an optimally healthy pregnancy.

For those of you who live South of the equator and are entering the cold winter season, please be aware that many homes and work environments are over-heated (with very dry air) and may cause you to lose salt and fluids in the same way as hot weather does. And shoveling snow or working out in a gym burns extra calories. These losses might also lead to a falling blood volume, and its accompanying complications, just as the summer heat and activity can. So please be watchful and care for your personally unique needs for salt and fluids, as well as your unique needs for calories and protein.

See here for information about intra-uterine growth retardation

The following is reprinted from What Every Pregnant Woman Should Know, a book on the Brewer Diet, by Gail Sforza Brewer and Tom Brewer, MD, first published in 1977.


"The Afflicted Child: Preventing Low Birth Weight" (p. 88)

More than 240,000 low-birth-weight babies are born annually in the United States. The percentage of such babies has risen steadily since the early 1950's. By 1968, 7.7 percent of all American babies were underweight at birth according to government sources. If a spring 1976 survey of four thousand new mothers done by Mothers' Manual is reliable, the figure has skyrocketed to 13.5 percent among middle and upper income families.

For stories of twins and triplets carried to term weighing 7 to 8 pounds, see here...

For a comparison between the Brewer Diet and the ACOG Diet, see here...

See here for more information on the link between low birth weight and inadequate prenatal nutrition

The 1972 United Nations Statistical Handbook discloses that low birth weight runs up to 60 percent higher in the United States than in some other advanced nations. The figures for Scandinavian countries show they have reduced low birth weight to 3 percent. In the People's Republic of China, it is less than 3 percent.

What is going wrong?

Does a baby's birth weight matter that much?

Definitely. Birth weight is the most accurate indicator of a baby's health and future mental and physical development. Babies born underweight have markedly reduced chances for survival, for normal intelligence and for coordinated movement. A report by the U.S. Department of Health, Education and Welfare in 1972 detailed the higher risks of death and permanent disability faced by the underweight newborns. Two-thirds of all deaths occurring to the the twenty-eighth day of life happen to low-birth-weight babies. This death rate is thirty times higher than in babies of normal birth weight.

Half of all low-birth-weight babies will grow up with I.Q.'s of less than 70, the cutoff point for severe mental retardation.

Three and a half times more infants of low birth weight suffer other neurologic deficits, such as cerebral palsy, epilepsy, learning disabilities and behavioral disorders.

It is a grim picture. Yet low birth weight does not arise from unknown cause. It is not a matter of heredity. In fact, the vast majority of cases are completely preventable. Every mother can take steps to protect her unborn baby from low birth weight by following a good diet during pregnancy.

It has been known since the 1920's that maternal nutrition influences birth weight more than any other factor. Many international researchers and practitioners have long since proved that the quality of the mother's diet has everything to do with her baby's birth weight and subsequent development.

A landmark volume presenting the writings of just a few standouts would include:

Honora Acosta-Sison, Philippines, 1929
Guttorum Toverud, Norway, 1931
Sir Edward Mellanby, England, 1933
Winslow T. Tompkins, 1941
John Ebbs, Toronto, 1942
Bertha Burke, Boston, 1943
A.N. Antonov, Russia, 1947
William Dieckmann, Chicago, 1951
Reginald Hamlin, Australia, 1952
Hilda Knobloch and Benjamin Pasamanick, New York, 1956
Benjamin Platt, England, 1964
Thomas Brewer, San Francisco, 1966
Leela Iyengar, India, 1967
J.F. Kerr Grieve, Scotland, 1974
Agnes Higgins, Montreal, 1976

Jay Hodin, executive director of the Society for the Protection of the Unborn through Nutrition (SPUN) and author of an exhaustive analysis of studies on malnutrition and developmental disabilities has noted: "Many of these investigators report results in which the probability that prenatal nutrition is unrelated to infant health is less than one in a billion"

In most of their papers one finds appeals for aggressive action to prevent low birth weight. The prescription, based on their own clinical experience, is almost always the same: improve maternal health by dietary intervention and low birth weight will virtually disappear.

Just what constitutes low birth weight? What size baby is normal? For many years, the figure five and a half pounds was used as a line of demarcation between low and normal birth weight. This figure was also used as the official standard for determination of prematurity. Most of these cases of low birth weight traditionally have been accounted for by a shortened period of gestation, with less than the thirty-eight weeks considered the minimum time necessary for complete fetal development.

In recent years, however, there had been a dramatic upsurge of low-birth-weight at term babies--those who weigh less than five and a half pounds after a full forty weeks gestation. There is evidence that these babies are at far greater risk than those born too early. The concept of "weight for gestational age" is replacing the straight five and a half pounds as an indicator of a baby's chances for normal health and development. Under this system, the underweight-for-date baby causes more concern among high-risk nursery personnel than the infant who is premature, but normal-for-date. Both types of low-birth-weight infants result primarily from maternal malnutrition.

Agnes Higgins of Montreal has stated that any baby weighing less than seven pounds at birth reflects some degree of sub-optimal maternal nutrition. Many agree with her that five and a half pounds may be a valid indicator for infant survival, but mere survival is not enough, especially when it is possible with our present knowledge and resources to feed every pregnant woman the diet she and her baby need for optimal health. Mrs. Higgins, whose program at the Montreal Diet Dispensary includes distribution of milk, eggs, and oranges to women who need them to supplement their diets, pegs the cost of this extra food at $125 per pregnancy [1977 economy]. The cost of maintaining a low-birth-weight baby in an intensive care unit can exceed $300 a day [1977]. The cost of institutionalizing a severely retarded child for life runs to $900,000 [1977].

See here for more information about Agnes Higgins' work at the Montreal Dietary Dispensary

Following the lead of Bertha Burke with whom she studied, Mrs. Higgins stresses a high-protein, high-calorie diet: she aims for 100 grams of high-quality protein and 2,600 calories a day. Mothers with twins require an additional 30 grams of protein and 500 extra calories--all provided by an extra quart of milk daily.

Burke found that the level of protein intake in the diet is directly reflected in the length and weight of the child at birth. In her 1940's study groups at Harvard, all babies weighed at least six pounds when the mother's diet contained 80 or more grams of protein a day. The median weight in this group was eight and a half pounds. When mothers obtained less than 45 grams of protein daily, 47 percent of the babies weighed under five and a half pounds.

Burke determined that for every additional 10 grams of protein added to the mother's diet (up to 100 grams), the baby's birth weight would increase by one-half pound. Iyengar in India substantiated that this could be done as late as the last four weeks of gestation with positive effect on the baby's birth weight.

How exactly does the mother's diet determine the way her baby grows? As we have mentioned, the placenta is the organ which nourishes the baby from the earliest weeks of pregnancy. A multi-service organ, it works as the baby's stomach, liver, kidneys, and lungs until the moment of birth. At birth, a healthy placenta weighs one and a half to two pounds, is the size and shape of a small dinner plate and is an inch or more thick. Its large flat surface is firmly attached to the wall of the uterus where, under normal conditions, it remains throughout labor, separating from the uterus and being expelled only after the baby is born. Blood vessels form a network throughout the placenta, feeding into the baby via the umbilical cord. The cord is the lifeline from mother to baby through which 300 quarts of blood per day are circulated. Many square yards of contact surface develop in the placenta over the course of the pregnancy to facilitate the vital exchange of nutrients and waste products between mother and baby.

After the mother eats a meal, the food is digested, absorbed, and passed into her liver which then releases essential nutrients into her bloodstream. These predigested nutrients reach a level of concentration higher in the mother's blood than in the baby's, so they readily pass through the very thin walls of the baby's capillaries into the baby's circulation. This process of diffusion works the same way in the transfer of oxygen from mother to baby. The nutrient-rich blood finally circulates through the baby's liver where the nutrients are recombined into the protein building blocks the baby needs for growth and development. There is no direct mixing of the baby's blood with the mother's. Each remains in its own circulation. Yet, they are intimately connected.

The outdated idea that the placenta can somehow extract nutrients from the mother which are not in her circulation is a threat to sound pregnancy nutrition. In a sense, the baby is in competition with all the tissues of the mother's body which also require continual nourishment from her bloodstream. If the mother fails to take in all the essential nutrients in large enough proportions to sustain the increased demands of pregnancy, her baby will not magically receive what it needs for optimal growth. The baby does not have top priority for nutrients. In fact, there are numerous reliable studies which show the opposite.

Aaron Lechtig and his collaborators have reported that even moderate maternal malnutrition interferes with the process of placental cell proliferation, resulting in abnormally small placentas. When the size of the placenta is reduced, the surface area available for nutrient transfer is correspondingly reduced. Many researchers now conclude that small placentas result in low-birth-weight babies. Very simply, a small placenta cannot transfer as many nutrients to the growing baby as a larger one. So, the baby does not weigh as much as it should at birth, even if it is born at term.

During the last eight weeks of pregnancy the baby gains an ounce a day. Brain development is occurring at the most rapid rate ever. The baby requires more oxygen and nutrients of types--including proteins, vitamins, minerals and calories--than earlier in pregnancy. If the mother is told she has gained enough weight already and put on a low-calorie, low-salt diet at this crucial time, the baby will be denied the nutrients needed to accomplish normal development. A restrictive diet is also likely to cause the mother's blood volume to shrink, reducing the amount of blood flowing through the placenta. The baby can suffer intrauterine growth retardation from this reduction of placental blood flow. When less blood passes through the placenta, fewer nutrients pass to the baby during any given period of time.

The National Institutes of Health Collaborative Study of Cerebral Palsy in 1968 drew a clearcut relationship between weight of the placenta and birth weight of the baby. When the placentas in one study group weighed only seven to fourteen ounces, over 22 percent of the babies weighed less than five and a half pounds. In another group, the placentas weighed fourteen to twenty-one ounces and low birth weight dropped to 3 percent. In over 1,700 cases the placenta weighed more than twenty-one ounces. Low birth weight fell to 0.5 percent in this group! A total of 31,966 infants were evaluated in this study, a large enough sample to meet any standard of scientific evidence! Clearly, maternal nutrition governs the size of both placenta and baby. It is also responsible for the secure implantation of the placenta on the uterine wall.......

.......In the last trimester, a healthy placenta is necessary for optimal development of another crucial organ, the baby's brain. The brain grow in two ways. Cells divide to make new ones and individual cells enlarge as they mature. Malnutrition retards both these processes, but it is especially devastating during the period when new cells are forming.

Cell division is most rapid and, therefore, most vulnerable from one month before birth until five months after. Never again will the baby's brain experience such an incredible proliferation of new cells. All of the eleven billion neurons, the cells which process and analyze information, are formed before birth. Inadequate nutrition during gestation results in permanent, irreversible deficits in the number of cells which make up the baby's brain.

Other problems also arise. Without adequate nutrition, the brain cells which do exist are likely to be malformed and their interconnections impaired. Learning problems and poor motor coordination are traced by many pediatric neurologists to these abnormalities.

Dr. Arnold Gold of Columbia University, addressing the Fall 1976 meeting of the American Foundation for Maternal and Child Health, stated his belief that minimal brain damage in all social groups is primarily the result of intrauterine malnutrition. In his own practice he sees children who have a variety of difficulties which he attributes in many cases to minimal brain damage not readily discernible at birth. Their parents or teachers report the children are hyperactive, have a short attention span, are frustrated easily, are delayed in meeting developmental milestones, have poor coordination and poor school performance or seem immature.

Citing the work of Knobloch and Pasamanick who in the 1950's outlined a "continuum of reproductive casualty" caused by low birth weight, Dr. Gold charted the overt and minimal damage done to cerebral function by malnutrition:

Function
Overt
Minimal
Motor
Cerebral palsy
Clumsiness
Sensory
Blindness
Deafness
Impaired spatial perception and shape memory
Mental
Low I.Q.
Poor abstract reasoning
Hyperkinesis
Speech
Aphasia
Delayed speech
Language difficulties
Convulsive
Epilepsy
Abnormal electroencephalogram (EEG)

Very little maternal malnutrition is required to produce these abnormalities. Researchers in England, for example, think even mild degrees of maternal undernutrition in the last few weeks of gestation can compromise the intricate process of brain cell division and integration. Especially vulnerable in their view is the cerebellum, the part of the brain which coordinates voluntary muscular movement.

Dr. Benjamin S. Platt, of the London School of Tropical Medicine, produced these disorders experimentally by restricting protein and calories in pregnant animals during his 30 years of research. He believed that the consequences of protein-calorie malnutrition which he documented in over five thousand laboratory cases were the same in human mothers as in other species of mammals. A member of the World Health Organization Joint Expert Committee on Nutrition for many years, Platt wrote that his colleagues treated his thesis with "undisguised scorn...because of the tendency, particularly marked among clinicians, to ignore or disparage experimental work on animals, often for no other reason than because the results have been obtained on animals."

Platt summarized his findings in 1968:

We have found throughout our experimental work that the earlier in life the animal is subjected to dietary deficiency, the more pronounced and extensive are its effects....Malnutrition lowers maternal efficiency and leads to the production of underweight babies, many of whom will die before reaching two years of age, whilst among their survivors there will be some who never reach their full physical or mental potential....Expert committees have met to discuss the problem of "low birth weight," though, still, I may say, with scant attention to the possible role of the nutrition of the mother.

When physicians responsible for giving prenatal care discount the work done on nutrition in animals, they are left with few guidelines for human nutrition. Doctors who treat the malnutrition thesis of reproductive casualty with "undisguised scorn" often state that they would be convinced if somebody would show them results of a truly controlled experiment in which some mothers were starved and others fed. To obtain the results to satisfy them, human mothers, pre-selected to share characteristics of statistical significance would have to spend their entire pregnancies in a laboratory. Their diets would be rigidly managed so no deviations would be possible. Their rates of exercise, rest and sleep would be recorded, along with notations of how much of each food each mother ate. Mothers' weight gains and losses would be charted. Fetal and placental growth and maturation would be determined by a sophisticated battery of tests. All mothers would be monitored, as were the astronauts in space, twenty-four hours a day.

After the babies were born they would be wired for metabolic assessment, too. A computer might have to be installed to handle all the information about differences between deprived and well-fed infants.

The researchers would then spend five years converting all their data to mathematical models, publishing their formulas, addressing major scientific symposia and establishing their academic reputations as unbiased investigators of the most impeccable order.

In fact, it will never be possible to satisfy the demands of those who call for inhumane experimentation of this sort. So these physicians will continue to remain unconvinced of the evidence that speaks for the importance of their pregnant patients' nutrition. They will continue to promote the view that "There's no hard data proving that nutrition has anything to do with pregnancy outcome"--a classic Catch-22.

History, however, has provided analogous situations in which human mothers, albeit not pre-selected, have been subjected to severe nutritional deprivation on a large scale. These historical "experiments" support the malnutrition thesis and discredit other theories which have obscured its role for many years.

The most stark example comes from the World War II Nazi blockade of Leningrad. During the seventeen-month siege, from August 1941 to December 1942, no food could be shipped into the city. The conditions of famine were so harsh that many women ceased menstruating, few conceived, and among those who did, the rates of spontaneous abortion, stillbirth, infant mortality and low birth weight surged upward.

A. N. Antonov, a Russian pediatrician who lived and worked through the siege, reported his observations in one clinic in the Journal of Pediatrics in 1947. One of the most striking developments he noted was the drastic decline in births (despite the fact that much of the army had retreated into the city). From 3,867 in 1941 the number plummeted to 493 in 1942. Of these, 414 occurred in the first half of the year--babies conceived before the siege began. Only 79 were born in the second half of 1942--those conceived after the siege began.

The 414 babies born in the first half of 1942 were subjected to severe intrauterine malnutrition during the last half of pregnancy, the critical period of brain development and weight gain. Of them, 49 percent weighed less than five and a half pounds at birth. Forty-one percent failed to attain normal length, measuring less than eighteen and a half inches. In the first half of the year, 256 of the 414 died--an infant mortality rate of 618 per thousand. Antonov described the babies as being frail with thin skull bones and high-pitched cries. They sucked poorly on mothers who produced little milk.

Dr. Antonov concluded:

Hunger, vitamin deficiency, cold, excessive physical strain, lack of rest, and constant nervous tension had their effect on the health of the women, and the intrauterine development of the fetuses, and the condition of the newborn children during the siege....

The cause of the unusually high proportions of premature births and of stillbirths in the first half of 1942 was hunger during pregnancy, that is, the insufficient quantity and unsatisfactory quality of the women's food.

In addition to these catastrophic effects on the unborn, maternal starvation was also responsible for a five-fold increase in convulsive MTLP [Metabolic Toxemia of Late Pregnancy], reported later by Persianov, a Moscow OB/GYN specialist.

What does this tragic story from the past have to do with American obstetrics today? The message is clear: mothers must not be starved during pregnancy and though most American women may not literally be hungry, those who receive inadequate and incorrect advice about their diets are starving for the nutrients they and their babies need.

At the top of the list of malnourished pregnant women are those who have been told by their doctors to:
1. restrict weight
2. restrict salt
3. take diuretics [rare in 2007]

Virtually every pregnant woman in America in the last thirty years [as of 1977] has been exposed to one or another of these useless pieces of dietary advice at some point in her pregnancy, which accounts for the widespread upsurge of low birth weight and brain-damaged children in our country. As Dr. Arther Sackler, international publisher of the Medical Tribune, commented in 1974:

I don't know how much more one needs to shock our medical consciences. One does not have to be a physician to be concerned with the epidemic of defective neonates (babies less than twenty-eight days old)....Nothing can be lost and potentially infinite suffering may be prevented by instituting simple, preventive nutritional measures and withholding questionable medications during pregnancy.

Note from Joy: While the use of amphetamines and diuretics may no longer be considered the mainstream treatment of choice for the symptoms of toxemia, other methods of weight control in pregnancy and treatments for toxemia are currently in vogue which are equally hazardous to both the baby and the mother. And unfortunately, the hazards of these current treatments are no more recognized by the mainstream practitioners of today than were the hazards of the earlier use of amphetamines and diuretics by the practitioners of yesterday. I have been witness to some of the current hazardous treatments, just within the past 5-10 years.

I worked for a homebirth midwifery practice for several years. For most of that time, all the midwives were supportive of the use of the Brewer Diet by the clients of the practice. The last year of my time there, we got a new midwife on staff who was very opposed to the use of the Brewer Diet. Whenever we got a new client who was the least little bit on the plump side, she would apparently tell her to get a little more exercise and eat a little less carbohydrates. When her blood pressure would start to creep up, she would tell her to cut back on her salt a little bit. No amount of my trying to explain the Brewer insights to her made any headway. As a result, within the first six months of her being on staff, we had 2-3 clients who had to be hospitalized with blood pressure problems and premature labor, as I recall, which was very uncharacteristic of our practice.

So it is very important that we not dismiss the historical accounts that Brewer has documented for us. We need not look down our noses at his reports of the starvation-amphetamine-diuretic practices of the physicians around him in his early days, and his efforts to stop those practices. We have our own faulty treatments in our own time, which are based on the same faulty thinking, and are just as hazardous as the treatments that he witnessed.

In addition, unfortunately, some areas of the "alternative medicine" community have apparently followed mainstream medicine in the belief that diuretics are important and useful for treating edema and elevated blood pressure in pregnancy. Many pregnancy teas and some supplements and juices include nettle, dandelion, alfalfa, bilberry, or celery, all of which have diuretic properties. Diuretics are no safer for pregnancy in herbal form than they are in prescription medications, so it is important for pregnant women to watch which herbs they are taking.

See here for more information on the hazards of using herbal diutetics in pregnancy


Nutritional Deficiency in Pregnancy

Complications
Control Group (750)
Nutrition Group (750)
Preeclampsia
59
0
Eclampsia
5
0
Prematures
(5 lb. or less)
37
0*
Infant Mortality
54.6/1,000
4/1,000

--Adapted from Winslow Tompkins. Journal of International College of Surgeons 4:417, 1941.
(*Smallest baby weighed 6 lb. 4 1/2 oz.)

Dr. Charles Lowe, then scientific director of the National Institute of Child Health and Human Development, agreed in 1972 after reviewing the dramatic decline in low-birth-weight rate (from 13.7 percent to 2.8 percent in women having their first babies) in the Contra Costa County prenatal clinics during the toxemia prevention project. Recognizing that this result was obtained exclusively by the use of scientific nutrition education and the abandonment of symptomatic therapies, Dr. Lowe commented:

These conclusions challenge the conventional wisdom, which demands constraint on weight gain by caloric restriction, a limitation of salt intake, and the use of saline diuretics. None of these were used in the Brewer series....Why is our prematurity rate rising, a factor of life in no other advanced nation? The answer may well lie in our prenatal regimens. It looks as if we can make real progress on both questions merely by feeding pregnant women.

All these conclusions point to the fact that we already have a reliable method for the prevention of many of the common complications of pregnancy, in particular of the metabolic toxemia of late pregnancy and of low-birth-weight babies. It is clearly improper to say that we need "more studies" before implementing sound maternal nutrition for all pregnant women. To continue to study the ravages of these preventable complications in pregnant women and their babies is to cruelly ignore the evidence already available.

Obstetricians trained in the United States over the past twenty years [50 yrs, as of 2007] will probably continue to have trouble accepting the "new look" in human maternal-fetal nutrition. Each one will only be able to learn for himself by trying these methods with pregnant mothers. As they do, they will be gratified by the healthful outcomes produced by this approach to pregnancy management.

The Brewer Medical Diet for Normal and High-Risk Pregnancy available here


Salt in Pregnancy

 
High Salt Diet
Low-Salt Diet
Toxemia
37/1000
97/1000
Perinatal deaths
27/1000
50/1000
C-section
9/1000
14/1000
Abruptio placenta
17/1000
32/1000

--Adapted from Margaret Robinson. "Salt in Pregnancy," Lancet 1:178, 1958.


The following is reprinted from Nine Months, Nine Lessons, by Gail Sforza Brewer, 1983 (p. 50).

Placenta

As Figure 8 shows, it is also the action of your uterus that separates your placenta and expels it in the third stage of labor. This organ allows nutrients and oxygen to pass from your bloodstream into your baby's and also permits the removal of waste products from the baby's body. The placenta originated in cells from the fertilized egg. Enzymes on the surface of the ovum dissolved away a tiny portion of the surface of your uterine wall, opening a few arteries and veins in the process. With each beat of your heart, from that moment until your placenta comes away from the wall of your uterus, those arteries spurt jets of nutrient- and oxygen-rich blood against the surface of the placenta. This is the only blood supply to this most important organ, and only what is present in your bloodstream can nourish it and your developing baby.

The placenta is firmly anchored to the wall of your uterus by threads of collagen throughout and by a seal around its margin. Because of this, the blood that swirls up against the placenta stays in a "lake," continuously bathing the placental tissue. This blood does return to your heart after spending some time in the "lake," via the open veins that now function like the drain in you tub or shower stall: the pooled blood is pushed into the veins by the force of new blood coming into the "lake" from the open arteries. Technically, this sort of blood supply is termed an a-v (arterio-venous) shunt, meaning that the blood passes directly from arteries to veins without first passing through capillaries (the usual way things are done in the body).

Since the supply of blood encourages and supports placental growth, and a larger placenta requires more blood to keep it functioning optimally, ever-increasing amounts of blood are required as pregnancy advances to satisfy the needs of the placenta. If you are carrying a single baby, your blood volume will expand approximately 60 percent (if you eat well enough) to service your placenta. If you have twins (and therefore a double placenta or two separat placentas), your blood volume must expand by 100 percent or more to stay even with the demand. A falling blood volume or a blood volume that is below the needs of your pregnancy is recognized as a major cause of premature labor, underweight babies, and high blood pressure during pregnancy. When you recognize the importance of keeping your blood volume up and your placenta healthy (even though you can't see it or feel it), you will have a strong inducement to stay on your excellent pregnancy diet every day.

See here to better understand the evolution of the mainstream medical perspective on nutrition and salt in pregnancy

Nine Months, Nine Lessons available here


Medical research during the last 40 years [as of 1978] has clearly shown that the following pregnancy complications can be directly caused by malnutrition.

A. For Mothers:
  1. Metabolic toxemia of late pregnancy (MTLP)
  2. Preterm separation of the placenta (afterbirth)
  3. Severe infections
  4. Severe anemias
  5. Miscarriages and molar pregnancy
  6. Premature labor and delivery
  7. Prolonged and difficult labor

B. For Babies:
  1. Stillborn babies, especially when MTLP and premature separation of the placenta occur
  2. Lowered birth weight
  3. Prematurity
  4. Severe infections
  5. Hypoglycemia
  6. Birth defects, especially defects of the brain leading to cerebral palsy, epilepsy, mental retardation, hyperactivity, and learning disabilities

The following is reprinted from Medikon International no. 4 - 30-5-1974.

"Iatrogenic Starvation in Human Pregnancy", by Tom Brewer, M.D., County Physician, Contra Costa County Medical Services, Richmond, California, U.S.A.

Frank Hytten tells us in his pregnancy physiology textbook of two pioneers in the field of iatrogenic starvation in human pregnancy.(1) A certain Professor Brunninghausen of Wurzburg decided, for reasons unstated, that it was better for women to eat less food during pregnancy; this was in 1803. A century later Prochownick is given credit in 1899 for introducing the idea that caloric and fluid restrictions during human pregnancy could produce an infant who weighed less at birth.(2) The intention of Prochownick was to minimize the cephalopelvic disproportion in a woman with a borderline contracted pelvis and thus reduce the incidence of surgical intervention in such patients. As surgical techniques developed with the practices of asepsis and improved anesthesia established, Western European obstetricians lost all fear of operative delivery. Prochownick's valuable clinical observation that caloric and fluid restrictions do in fact lower the birth weight of the newborn human infant was forgotten. Thus a very important clue to the mystery of "low birth weight for dates" newborns was buried.

Unfortunately, this still universal misconception became established as a dogma in clinical obstetrical teachings in Western medical culture: the human fetus is a parasite, will grow according to its "genetic code" to a given weight and length before birth, and that this growth and development are in no concrete, material sense influenced by the foods and fluids the pregnant woman is taking in during the course of her gestation.(3,4) Scientific obstetrics still suffers today from what I term "nutritional nonchalance" related to this false belief.

In 1972 officially in the United States the cause of eclampsia, the disease I term convulsive metabolic toxemia of late pregnancy (MTLP), was "unknown."(5,6) [This official assertion continues into 2008] Since this dread disease remains a common cause of maternal, fetal and newborn morbidity and mortality throughout the world, speculations about its etiology continue. It has been long believed that the Nutrition of the pregnant woman during gestation does in fact influence her development of MTLP. Women who develop MTLP are still accused of eating too many calories and too much salt (NaCl). That such an idea remains popular in 1973 stems from the fact taht very few Western-trained OB/GYN surgeons have ever taken time or interest to ask these poor women what foods and how much they have been eating and drinking during pregnancy.

When I began to work in the Tulane Service's prenatal clinics at Charity Hospital, New Orleans, Louisiana, as a third year medical student, pregnant patients were being told to restrict their caloric intake and to restrict their dietary salt intake: "So you won't have fits....so you and your baby won't die from toxemia." It is difficult for me to learn what is happening there now since no members of the Tulane faculty will communicate with me, but unofficial sources informed me not long ago that "...nothing has changed in this field since you were here over 20 years ago." I studied this problem for four years in another city-county hospital in our deep south. Jackson Memorial Hospital, Miami, Florida, from 1958 to 1962. A reliable communication from an established ostetrician in Miami in March, 1973 informed me that "...nothing has changed in this field since you left here over ten years ago." The common practices of weight control and dietary salt restriction seem eternal.

Since it is now clear that the sudden, rapid weight gain observed in patients with severe MTLP is a result of malnutrition with a falling serum albumin concentration, hemoconcentration, a falling blood volume with increasing interstitial fluid, we no longer need to blindly "control weight" with starvation type diets. However, fear of the unknown drives the most rational and "scientific" people to irrational actions; millions of pregnant women in Western European medical culture still suffer from iatrogenic starvation diets in the vague hope that caloric and salt restriction will in some way protect them and their unborn from the "ancient enigma of obstetrics," eclampsia.

Iatrogenic starvation in human pregnancy has a long and ignoble history in the United States: its traditions run strong and deep in one of our oldest and most respectable journals of obstetrics, the American Journal of Obstetrics and Gynecology. In its second volume published in 1921 we find this account by Rucker:

"On August 2nd, two weeks after her first visit, her blood pressure was 120/80, the urine was free from albumin and sugar. On August 17 her weight had increased 6 pounds and her legs were swollen up to her knees. She had no headache. Blood pressure was 180/90. Urine was free from albumin and sugar. She was placed upon a bread and water diet." (emphasis added)

"A week later, August 24, in spite of her rigid diet, she had gained 8 3/4 pounds more. (emphasis added) Her blood pressure was 205/110 and she was having pains in the back of her head and was seeing specks before her eyes. The urine showed a trace of albumin. No casts were found."(7)

Subsequently this poor woman had 11 convulsions. It is now clear that a "bread and water diet" is not effective prophylaxis for MTLP!

In the very first volume of The American Journal of Obstetrics and Gynecology published 53 years ago [as of1974], Ehrenfest reviewed "Recent Literature on Eclampsia," and found that venesection was still in common use for this dread disease: "For the purpose of reducing the blood pressure and of eliminating toxins...."

He reported another then widespread approach: "Diuretics should be accompanied by a total or partial restriction of salt. No meat shall be allowed." (emphasis added) Ehrenfest also noted the beginning of a scientific rejection of blood-letting in the management of eclampsia: "Cragin says: Eclampsia patients after convulsions resemble so closely patients in shock, that venesection seems illogical. They seem to need all the blood they have and more too."(8)

Here was the obvious clinical recognition of the hypovolemic shock which so commonly causes maternal and fetal deaths in severe metabolic toxemia of late pregnancy.(9) The illogical use of salt diuretics in this disease may be viewed now as a "modern" form of blood-letting in which electrolytes and water of the blood are forced out of the patient's body via her kidneys, a kind of cell-free venesection!

In April, 1969, I presented a paper to an international meeting on "toxemia of pregnancy" in Basel, Switzerland, by invitation of Dr. E.T. Ripperman, Secretary of the Organization Gestose.(10) Here I learned these interesting facts:

  1. Eclampsia has virtually disappeared from Switzerland; there had been no maternal death from this disease in Basel for almost two decades.

  2. Some Swiss OB/GYN professors were still teaching that the pregnant woman must avoid red meat as prophylaxis against eclampsia; for the Swiss this prescription seems to be working.

  3. The incidence of low birth weight babies born in the University Hospital, Basel, in the year 1967, from some 3,000 deliveries was 3.0%.

It soon became apparent here from my discussions with many European OB/GYN authorities that the general nutritional status of the peoples of Central Europe was exceptionally good, and that this adequate nutrition was the basic cause for the elimination of severe MTLP and for the relatively low incidence of low birth weight infants.

My own paper presented in Basel was received with the utmost skepticism: the European obstetricians almost to the man responded: "Surely there is no severe malnutrition in rich America." Surely? The incidence of low birth weight in our nation has risen from 7.0% in 1950 to 10.0% now [1974] with much higher figures for all our poverty areas; MTLP continues to cause maternal-fetal and newborn morbidity and mortality. Iatrogenic starvation during human pregnancy is still widely practiced throughout our nation today because none of our medical or "public health" institutions have taken concrete actions to stop it.

A review of the unbound issues of The American Journal of Obstetrics and Gynecology reveals that for most of the 1950's and 1960's amphetamines and other "diet pills" were widely advertised for "weight control" in human pregnancy. Salt diuretics, long recognized to be lethal to the severely toxemic patient and to her fetus, were promoted by this journal form 1958 to 1972. Professor Leon Chesley finally recognized their harmful effects on the maternal plasma volume.(11) The advertisements for these water pills were then stopped but not their widespread use.

Today in 1973 the problems of rising prices for essential foods like lean meats, chicken, eggs, vegetables and fruits, and the continuing poverty and economic depression in many areas of our nation can not be solved by the nation's physicians. However, do not humane physicians today have a special and moral responsibility to stop the blind errors of iatrogenic starvation in human pregnancy? Do not obstetricians, especially, in charge of human antenatal care in public clinics and private offices, have a responsibility to their pregnant patients to give them scientific nutrition information? The protective effects of applied, scientific nutrition in human antenatal care have recently been dramatically documented by Mrs. Agnes Higgins of the Montreal Diet Dispensary.(12) The rationale for blind weight control to any "magic number" of pounds in human pregnancy has been completely destroyed.(13) What then must the obstetricians of our nation do? What actions must they take to insure maternal-fetal and newborn health for each woman who wants to produce a normal, full term child and remain in good health herself?

  1. Recognize the complications of human pregnancy caused by malnutrition.(14)

  2. Teach each pregnant woman as a routine part of modern, scientific prenatal care, the basic principles of applied scientific nutrition.

  3. Insure that she actually eats an adequate, balanced diet all through gestation.

  4. Encourage her to salt her food "to taste." (with rare exception)

  5. Stop "weight control" to any number of pounds. (when nutrition is adequate and balanced, the weight gain takes care of itself with an average gain in healthy pregnancy of about 35 pounds)

  6. Protect each pregnant woman and her unborn from all harmful drugs, especially salt diuretics and appetite depressants.

  7. On the postpartum wards educate all pregnant patients who have suffered nutritional complications during pregnancy--so that those complications will not recur in subsequent pregnancies.(15)

  8. Stop iatrogenic starvation in human pregnancy.

These measures will begin to open a new era in preventive obstetrics in our nation and dramatically reduce the numbers of low birth weight and brain-damaged and mentally retarded children now being born.

More information on underweight babies follows these references

REFERENCES

  1. Hytten, F.E. and Leitch, I. The Physiology of Human Pregnancy. 2nd edition, Oxford, Blackwell Scientific Publications, 1970.

  2. Prochownick, L. "Ein Versuch zum Ersatz der Kunstlichen Fruhgeburt" (An attempt towards the replacement of induced premature birth. Zbl. Gynak. 30:577, 1889.

  3. Williams, Sue Rodwell. Nutrition and Diet Therapy, 2nd Edition. St. Louis, Mosby, 1973, Chapter 17.

  4. Brewer, T.H. "Human Pregnancy Nutrition: an examination of traditional assumptions" Aust. N.Z. J. Obstet. Gynaecol. 10:87, 1970.

  5. Pitkin, Roy M., Kaminetzky, Harold A., Newton, Michael, and Pritchard, Jack A. "Maternal nutrition: a selective review of clinical topics" Obstet. Gynecol. 40:773-785, 1972.

  6. Brewer, T.H. "Human maternal-fetal nutrition". Obstet. Gynecol. 40:868-870, 1972.

  7. Rucker, M. Pierce. "The Behavior of the uterus in eclampsia" Amer. J. Obstet. Gynecol. 2:179-183, 1921.

  8. Ehrenfest, Hugo. "Collective review: recent literature on eclampsia". Amer. J. Obstet. Gynecol. 1:214-218, 1920.

  9. Brewer, T.H. "Limitations of diuretic therapy in the management of severe toxemia of pregnancy: the significance of hypoalbuminemia" Amer. J. Obstet. Gynecol. 83:1352, 1962.

  10. Brewer, T.H. "Metabolic toxemia of late pregnancy: a disease entity" Gynaecologia 167: 1-8, 1969. (Basel)

  11. Chesley, Leon C. "Plasma and red cell volumes during pregnancy" Amer. J. Obstet. Gynecol. 112:440-450, 1972.

  12. Primrose, T. and Higgins, A. "A study in human antepartum nutrition" J. Reproduct. Med. 7:257-264, 1971.

  13. Pomerance, J. "Weight gain in pregnancy: how much is enough?" Clin. Pediat. 11:554-556, 1972.

  14. Brewer, T. "Metabolic toxemia: the mysterious affliction." J. Applied Nutrition 24:56-63, 1972.

  15. Brewer, T.H. "A case of recurrant abruptio placentae." Delaware Med. J. 41:325-331, 1969.


The following is from a chapter reprinted by permission from 21st Century Obstetrics Now! (David Stewart, PhD, and Lee Stewart, CCE, Editors), National Association of Parents & Professionals for Safe Alternatives in Childbirth, 1977. (p. 387)

"Why Women Must Meet the Nutritional Stress of Pregnancy" (p.387)

See here for the entire chapter that these charts were taken from


TABLE 4
RELATIONSHIP BETWEEN PRENATAL NUTRITION
AND BIRTH WEIGHT

Nutritional
Status of
Gravid Women
# of
Women
% Low
Birth
Weight

Significance Level of
Difference with Fairly
Nourished Group

GOOD
63
3.2

p<.005

FAIR
272
11.0

- - -

POOR
28
33.0

p<.005


TABLE 5
RELATIONSHIP OF BIRTH WEIGHT
TO PRENATAL NUTRITION

Prenatal
Diet
Good or
Excellent
Fair

Poor or
Very Poor

Number of
Infants
31
149

36

Average
Birth Weight
8lb,8oz
(3856 g)
7lb,7oz
(3374 g)

5lb,13oz
(2637 g)


TABLE 6
EFFECT OF SUPPLEMENTATION ON
DECREASING LOW BIRTH WEIGHT INCIDENCE

Amount of Caloric
Supplementation
During Pregnancy
Less
Than
5,000
5,000
to
19,999

At Least
20,000
Calories

Number of Women
82
89

117

% Low Birth Weight
13.4
7.1

3.5


TABLE 7
LOW BIRTH WEIGHT INCIDENCE
AND DURATION OF PARTICIPATION

Weeks of
Nutrition
Counseling
Live
Births
Low
Birth Weight
Infants

% Low
Birth
Weight

1-12
519
51

9.83

13-20
499
39

7.82

At least 21
713
29

4.07

All cases
1,731
119

6.87


FIGURE 1. Effect of nutrition education and food supplementation on birth weight for mother of 11.

Child
Nutrition Education
or Supplementation
Approximate
Birth Weight
First--Female
None
2,700 grams (6 pounds)
Second--Male
None
2,500 grams (5 lbs 8 oz)
Third--Male
None
1,800 grams (4 pounds)
Fourth--Female
None
2,300 grams (5 lbs 1 oz)
Fifth--Female
None
2,100 grams (4 lbs 10 oz)

Sixth--Male

None

2,800 grams (6 lbs 3 oz)

Seventh--Male

None

2,300 grams (5 lbs 1 oz)

Eighth--Male

None

1,800 grams (3 lbs 15 oz)

Ninth--Female

Both

3,200 grams (7 lbs 1 oz)

Tenth--Male

Both

3,800 grams (8 lbs 6 oz)

Eleventh--Female

Both

3,400 grams (7 lbs 8 oz)


TABLE 8
INFLUENCE OF NUTRITION EDUCATION
IN LOWERING RISK OF LOW BIRTH WEIGHT

 
# of Women
% Low Birth Weight
Infants born to primigravidas
Receiving Nutrition Education
321
2.8
Infants born to other primigravidas
Attending same County Clinic
1,237
13.7


TABLE 9
INFLUENCE OF NUTRITION
ON SURVIVAL AND WEIGHT AT BIRTH

Calories
or
Nutrient (g)
Optimum
Requirements
(As stated by
the Authors)
Approximate



Stillbirths

Daily Intake

Low
Birth Weight
Infants

by Group

Normal-
Weight
Infants

Calories
2,500
1,644

1,710

1,946

Carbohydrates
350
207

217

217

Fat
80
61.4

64.9

80.4

Protein
90
52.4

54.5

72.1

High-Quality Protein
50
27.4

29.9

45.9

Calcium

1.5

0.7

0.8

1.2

Phosphorus

2.0

0.9

0.9

1.4

Iron (mg)

15.0

9.0

9.0

11.0


TABLE 10
ASSOCIATION OF BIRTH WEIGHT
WITH VARIOUS TESTS AND MEASUREMENTS

Examination
Mean Difference Between the
Higher Birth Weight Twins
and the Lower Birth Weight Twins
Significance
Level
Vocabulary Test
2.50
ns
I.Q.
6.75
p<.05
Height
4.34 cm (1.7 in.)
p<.01
Head Circumference
1.34 cm (0.5 in)
p<.001
Weight
3.95 kg (7 lb. 15 oz.)
p<.001


TABLE 11
ASSOCIATION OF BIRTH WEIGHT WITH I.Q.
AND MEASUREMENTS AMONG MONOZYGOTIC TWINS

Examination
Mean Difference Between the
Higher Birth Weight Twins
and the Lower Birth Weight Twins
Significance
Level
I.Q.
6.56
p<.05
Height
5.89 cm (2.3 in.)
p<.001

Head Circumference

1.67 cm (0.7 in.)

p<.01

Weight
4.81 kg (9 lb. 11 oz.)
p<.001


TABLE 12
ASSOCIATION BETWEEN BIRTH WEIGHT
AND RISK OF HANDICAP (514 Cases)

Birth Weight
Degree


Moderate
or Severe
of



Mild

Handicap


Little
or None

1250 grams
(2 lb, 12 oz)
64% (23)
17% (6)

19% (7)

1251-1500 grams
(2 lb, 12 oz
to 3 lb, 5 oz)
34% (16)
21% (10)

45% (21)

1501-1750 grams
(3 lb, 5 oz
to 3 lb, 13.75 oz)
19% (5)
23% (6)

58% (15)

1751-2000 grams
(3 lb, 13.75 oz
to 4 lb, 6.5 oz)
12% (8)
30% (20)

58% (39)

2001-2250 grams
(4 lb, 6.5 oz
to 4 lb, 15.5 oz)
4% (2)
23% (13)

74% (42)

2251-2500 grams
(4 lb, 15.5 oz
to 5 lb, 8 oz)

3% (3)

16% (19)

81% (94)

2501 grams
(5 lb, 8 oz)
and over

1% (2)

12% (20)

87% (143)


TABLE 13
INFLUENCE OF BIRTH WEIGHT
ON DISTRIBUTION OF I.Q. SCORES
BY SOCIOECONOMIC STATUS

Socio-
economic
Class
I.Q. Centile
Birth


2000
and Under

Weight (g)



2001-2500

Middle
Under 25th
25th to 75th
Over 75th
Total
55% (29)
36% (19)
9% (5)
100% (53)

39% (26)
44% (29)
17% (11)
100% (66)

Working
Under 25th
25th to 75th
Over 75th
Total
64% (29)
25% (11)
11% (5)
100% (45)

36% (28)
47% (37)
18% (14)
100% (79)

Lower
Under 25th
25th to 75th
Over 75th
Total
52% (14)
44% (12)
4% (1)
100% (27)

48% (15)
45% (14)
6% (2)
100% (31)


TABLE 14
RELATIONSHIP BETWEEN BIRTH WEIGHT
AND CHILDHOOD BEHAVIOR
BY SOCIAL CLASS

Socioeconomic
Class
Total #
of
Children
%
Stable

%
Unsettled

%
Maladjusted

Birth

Middle
Working
Lower
Weight

42
36
28
Under

69
47
36

2001

24
19
36

grams

7
33
29

Birth

Middle
Working
Lower
Weight

71
54
29
Over

79
70
45

2500

15
20
41

grams

6
9
14


TABLE 15
RELATIONSHIP BETWEEN I.Q. AND BIRTH WEIGHT
AMONG 51 RETARDATES AND MATCHED CONTROLS

 
Average
I.Q.
Average
Birth Weight

Average Birth Weight
Exclusive of Low
Birth Weight and/or
Premature Children

MALES

Retarded
Children


Control
Group


70



121



3020 grams
(6 lb, 10.63 oz)
(N = 25)
.........(p<.002)
3750 grams
(8 lb, 4.37 oz)
(N = 25)



3300 grams
(7 lb, 4.5 oz)
(N = 20)
.........(p<.002)
3830 grams
(8 lb, 7.25 oz)
(N = 24)

FEMALES

Retarded
Children


Control
Group


67



124



3020 grams
(6 lb, 10.63 oz)
(N = 25)
.........(p<.002)
3750 grams
(8 lb, 4.37 oz)
(N = 25)



3080 grams
(6 lb, 12.75 oz)
(N = 20)
.........(p<.002)
3440 grams
(7 lb, 9.37 oz)
(N = 25)

N = Number of Children


TABLE 16
ASSOCIATION BETWEEN BIRTH WEIGHT
AND DEVELOPMENT OF RDS

Birth Weight
Total #
of
Children
Incidence
of RDS

Incidence of
Severe RDS

1250 grams or less
12
75%

42.0%

Over 1250 grams
28
32%

3.5%


TABLE 17
RISK OF MENTAL RETARDATION
AMONG CHILDREN WITH RDS

 
# of
Children
Incidence of Mental
Retardation Among
Children with RDS
Severe RDS
6
67%
Less Severe RDS
12
8%


TABLE 18
RISK OF RDS AND CONCOMMITANT MORTALITY BY BIRTH WEIGHT,
CORD PROTEIN LEVELS, AND LENGTH OF GESTATION

 
# of
Infants
%
With RDS

Lvl. of
Signif.

%
Mortal.

Low Birth Weight
171
17.5
 

11.1

Birth Weight
Over 2500 grams

2,039
 

p<10-12


*

Cord Protein of
4.6 g/100 ml or less

98
   


20.4

Cord protein greater than
4.6 g/100 ml

2,102
 

p<10-12


*

Low Birth Weight and
Low Cord Protein
(4.6 g/100 ml or less)


60
   



30.0

Normal Birth Weight
and/or normal cord
Protein (at least
4.7 g/100 ml).




2,140

 



p<10-15




*

Premature (less than
37 weeks' gestation)
and Low Blood Protein



58

   



32.8

Normal Length of Gestation
and Normal Blood Prot.


2,142

 

p<10-15


*


TABLE 19
RELATIONSHIP OF PRENATAL NUTRITION
AND BIRTH WEIGHT TO NEONATAL HEALTH

 
Pediatric

Superior

Ratings

Good

of

Fair

Infants

Poor

Number
of infants

23


84


76


33

Average
Birth
Weight

8lb, 2oz
(3685g)


7lb,12oz
(3515g)


7lb, 2oz
(3232g)


5lb, 15oz
(2693g)

Women on Good
or excellent
Prenatal Diet


56%



19%



1%



3%

Women on Poor
or Very Poor
Prenatal Diet


9%



2%



12%



79%


TABLE 20
INFLUENCE OF DIET IN REDUCING RISK OF
MISCARRIAGE, STILLBIRTH, AND PREMATURE BIRTH

Type of
Diet
# of
Women
%
Miscarriages

%
Stillbirths

%
Premature

Good
170
1.2

0.6

3.0

Supplemented
90
0.0

0.0

2.2

Poor
120
6.0

3.4

8.0


TABLE 21
PRENATAL DIET BY
CONDITION OF BABY AT AGE TWO WEEKS

Prenatal
Diet Group



Good
Condition

Fair

of Baby

Poor




Bad

Good
72.2%
23.8%

1.2%

3.0%

Supplemented
90.5%
9.5%

0.0%

0.0%

Poor
62.3%
23.7%

5.3%

8.7%


TABLE 22
EFFECT OF NUTRITION ON REDUCING MODERATELY LOW BIRTH WEIGHT,
STILLBIRTH, AND INFANT MORTALITY

 


Study


Group



Control



Group

Signif.
Level of
Difference

Total Number
750
 

750

   
Births Under
5 lb (2268g)

0

(0%)


37


(4.9%)


p<10-8

Stillbirths (rate)
0
0

20

26.7

p<10-6

Infant Deaths (rate)
3
4.0

41

54.6

p<10-7


TABLE 23
MORTALITY BY DEGREE
OF CALORIC SUPPLEMENTATION

 

# of
Women


First
6 Months

More Than 6
But Less
Than 9 Months

Over 9 Months
But Less
Than 1 Year
High Supple-
mentation

199


3.0%


0.9%


0.0%
Low Supple-
mentation
454


5.3%


1.2%


0.6%


TABLE 24
ASSOCIATION OF PLACENTAL WEIGHT WITH
LOW BIRTH WEIGHT AND PERINATAL MORTALITY

Weight of
Placenta (g)
# Live Births
With Known
Birth Weight

% Low
Birth Wt.


Total
Births

%
Perinatal
Mortality

0-199

122

88.5

318

86.5

200-249

311

83.6

374

33.5

250-299

1,129

51.9

1,192

9.4

300-349

3,555

26.2

3,616

2.9

350-399

6,150

12.1

6,205

1.6

400-449
7,283
5.1

7,331

1.4

450-499
5,879
2.8

5,921

1.0

500-549
3,744
1.3

3,764

1.0

550-599
2,056
0.9

2,072

1.0

>600
1,737
0.5

1,771

2.7

TOTAL

31,966

10.13

32,564

3.03


TABLE 39
CORRELATION BETWEEN
WEIGHT GAIN DURING PREGNANCY
AND INCIDENCE OF LOW BIRTH WEIGHT

Weight Gain (Pounds)
% Low Birth Weight
Loss
17.0
0-15
15.8
16-25
8.2
26-35
4.3
36 or more
3.0


TABLE 40
INCIDENCE OF ABNORMAL GROWTH BY WEIGHT GAIN

 
0-15
Pounds
(%)
16-25
Pounds
(%)

26-35
Pounds
(%)

Over
36 Pounds
(%)

Weight
15.8
11.2

8.4

6.2

Motor Exam
11.3
8.0

6.8

5.2

Mental Exam
12.5
9.3

8.3

7.5

Height
10.1
7.5

6.5

7.3

Neurologic Test
8.8
7.5

7.9

7.1


Figure 2. Neonatal mortality risk by birth weight & gestational age. Figures in boxes are percents of babies within the weight and age ranges of the box that die within the first 28 days after live birth. Especially note that babies born at term (38-42 weeks) but less than 2,500 grams are more likely to die than pre-term babies born at 30-36 weeks but who weigh more than 2,500 grams. (Note: 1,000 g = 2.2 lb or 2,500 g = 5.5 lb)

chart2.jpg


Figure 3. Probability that Respiratory Distress Syndrome (RDS) will develop in a given infant based on determinations of gestational age and cord blood total protein level as independent variables, with the use of the logistic function.

IMG_0001

21st Century Obstetrics Now! Vol. 2 available here

See here for the entire chapter, "Why Women Must Meet the Nutritional Stress of Pregnancy"

Perinatal Support Services: pregnancydiet@mindspring.com