“Drinking whole fat milk and eating ice cream appears to be better for women trying to become pregnant than a diet consisting of low-fat dairy products such as skim milk and yogurt, according to new research published in Human Reproduction journal. Researchers in the United States have found a link between a low-fat dairy diet and increased risk of anovulatory infertility.”
“Further, lactose (the main carbohydrate in milk and dairy products) may not affect fertility within the usual range of intake levels in humans.”
“Consumption of iron supplements and nonheme iron from other sources may decrease the risk of ovulatory infertility.”
“Folic acid appeared to explain part of the association between multivitamin supplement use and risk of ovulatory infertility.”
“Dairy consumption was not significantly correlated with PCOS. However, after adjustment for confounders, there was an direct relationship between milk consumption and risk of PCOS.”
“the results showed that the intake amounts of Ca, Mg, D vitamin, dairy, fruits and nuts and seeds were remarkably low among the women with PCOS.”
What are they living on, Oreos?
“some evidence on the decreased amount of adiponectine, calcium, D vitamin in the patients suffering from PCOS with having a higher thyroglobulin”
“According to existing data, women trying to achieve pregnancy are encouraged to increase consumption of whole grains, omega-3 fatty acids, fish, and soy and to reduce consumption of trans fats and red meat. In addition, a daily multivitamin that contains folic acid before and during pregnancy may not only prevent birth defects, but also improve the chance of achieving and maintaining a pregnancy. In contrast, there is limited evidence supporting an association betweenvitamin D and human fecundity outcomes despite promising evidence from nonhuman studies.
Questions for future research included the roles of other types of fat (especially omega-6 and monounsaturated fats) and protein (especially white meat and seafood) on female fertility; particular attention should also be paid to exposure to environmental contaminants in foods. Although much work remains, this review accrued best available evidence to provide practical dietary recommendations for women trying to conceive.”
“One approach to minimize the impact of anovulation on fertility is supplementation with progesterone during recruitment, selection and final stages of development of the preovulatory follicle. It is suggested that a minimum of 2.0 ng/mL of progesterone is needed during growth of the preovulatory follicle to achieve P/AI similar to that of cows growing the preovulatory follicle during diestrus.”
The literature on the relationship between diet and human fertility has greatly expanded over the last decade, resulting in the identification of a few clear patterns. Intake of supplemental folic acid, particularly at doses higher than those recommended for the prevention of neural tube defects, has been consistently related to lower frequency of infertility, lower risk of pregnancy loss, and greater success in infertility treatment. On the other hand and despite promising evidence from animal models, vitamin D does not appear to exert an important role in human fertility in the absence of deficiency.
However, the available evidence does not allow discerning which specific antioxidants, or at which doses, are responsible for this benefit. Long-chain omega-3 fatty acids appear to improve female fertility, although it remains unclear to what extent contamination of shared food sources, such as fish with high levels of environmental toxicants, can dampen this benefit.
The cumulative evidence has also piled against popular hypotheses.
Dairy and soy, once proposed as reproductive toxicants, have not been consistently related to poor fertility.
In fact, soy and soy supplements appear to exert a beneficial effect among women undergoing infertility treatment.
While a complete picture of the role of nutrition on fertility is far from complete, much progress has been made. The most salient gaps in the current evidence include jointly considering female and male diets and testing the most consistent findings in randomized trials.