(Excerpted from the Weston A. Price foundation Journal: Caustic Commentary – Summer 2007)
Full-fat milk has pretty much disappeared from the public schools—not just in the US, but also in New Zealand, Australia and the UK. In most schools, children have a choice of watery reduced-fat milk or sugar-laden chocolate milk, based on the misconception that the butterfat in whole milk will cause heart disease later in life. So it’s a bit embarrassing when a study comes along showing that whole-fat milk products may help women conceive. Over a period of eight years, Jorge E Chavarro of the Harvard School of Public Health in Boston assessed the diets of 18,555 married women without a history of infertility who attempted to get pregnant or became pregnant. During the study, 2165 women were examined medically for infertility and 438 were found to be infertile due to lack of ovulation. The researchers found that women who ate two or more servings of lowfat dairy foods per day, particularly skim milk and yogurt, increased their risk of ovulation-related infertility by more than 85 percent compared with women who ate less than one serving of lowfat dairy food per week (Human Reproduction, online February 28, 2007). Chavarro advises women wanting to conceive to consume high-fat dairy foods like whole milk and ice cream, “while at the same time maintaining their normal calorie intake and limiting their overall intake of saturated fats in order to maintain good general health.” Once a woman becomes pregnant, says Chavarro, “she should probably switch back to lowfat dairy foods.” No one has looked at the effect on fertility of lowfat dairy for the developing fetus and for growing school children. Odds are that infertility due to life-long fat starvation will not be so easily reversed by a temporary return to high-fat dairy foods.
This is a perfect example of how mainstream dogma gets in the way of clear thinking. The study unambiguously showed the superiority of whole fat milk products for helping a woman to become pregnant. Yet the author of the study advises women to “switch back to low fat dairy foods” once she becomes pregnant! So, according to this twisted logic, the nutrients in whole fat milk that helped the woman to conceive in the first place will somehow suddenly be harmful to her and her fetus during pregnancy? Isn’t it far more reasonable to assume that those same nutrients that increased the women’s fertility will also support the growth and development of the fetus? In fact, there is plenty of research that supports this common-sense view (stay tuned for a future post on this.)
Will lowfat milk served in schools not only make our children infertile, but also fatter? That’s the conclusion from a 2006 Swedish study which looked at 230 families in Goteborg, Sweden. Almost all of the children were breastfed until five months and 85 percent had parents who were university educated. Seventeen percent were classified as overweight, and a higher body mass index (BMI) was associated with a lower fat intake—and those on lower fat diets consumed more sugar. A lower fat intake was also associated with high insulin resistance (www.ub.gu.se/sok/dissdatabas/detaljvy.xml?id=6979).
Whole Fat Milk, Lower Weight Gain
In yet another defeat for the lowfat, you-must-suffer-to-lose-weight school of thought, a Swedish study has found that women who regularly consume at least one serving of full-fat dairy every day gained about 30 percent less weight than women who didn’t. The researchers, from the Karolinska Institute in Stockholm, looked at the intake of whole, sour, medium- and lowfat milk, as well as cheese and butter for 19,352 Swedish women aged 40-55 years at the start of the study. The researchers report that a regular and constant intake of whole milk, sour milk and cheese was significantly and inversely associated with weight gain (that is, those consuming whole-milk products did not gain weight), while the other intake groups were not. A constant intake of at least one daily serving of whole and sour milk was associated with 15 percent less weight gain, while cheese was associated with 30 percent less weight gain (American Journal of Clinical Nutrition, 2007;84(6):1481-1488). This wonderful scientific news has not inspired WebMD to remove their guidelines to eating “fabulous foreign foods.” The trick, they say, is to avoid dishes made with coconut milk in Thai restaurants; ghee, beef and lamb in Indian restaurants; and cream soups, cream sauces, béarnaise, creamy dressings, pâté, fatty meats, duck and sausages in French restaurants (onhealth.webmd.com). In other words, enjoy your meal out but not too much.
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