Soy is tough to avoid. Today I noted it in the ingredients of a health drink. But is it healthy - particularly for mothers and infants?
Here's a great article about it.
Soy is particularly harmful for women and men trying to conceive, for women already pregnant or breastfeeding and for infants.
A study at the Harvard Public School of Health in 2008 found that men who consumed the equivalent of one cup of soy milk per day had a 50% lower sperm count than men who didn’t eat soy.
In 1992, the Swiss Health Service estimated that women consuming the equivalent of two cups of soy milk per day provides the estrogenic equivalent of one birth control pill. That means women eating cereal with soy milk and drinking a soy latte each day are effectively getting the same estrogen effect as if they were taking a birth control pill.
This effect is even more dramatic in infants fed soy formula. The key ingredient in soy formula is soy protein isolate, a compound that is not even recognized as safe for human consumption by the FDA.
Infants fed soy receive 6.25 mg of soy isoflavones per kilogram of body weight per day. This is more than 10 times the amount of soy isoflavones that has been shown to cause problems in adults.
In a baby that weighs 13 pounds, 10 mg of soy provides the estrogenic equivalent of a birth control pill. The average amount of soy formula given to an infant in a day contains 40 mg of soy. This means that feeding soy formula to a baby is the equivalent of giving her 4 birth control pills.Continue reading "5 Myths About Pregnancy Nutrition – #4: Soy is a Healthy Alternative to Meat & Dairy."
More info: The Nourishing Traditions Book of Baby & Child Care by Sally Fallon Morell and Thomas S. Cowan, MD.