Women who are trying to conceive may want to heed the following:
Avoid eating too much soy. According to a study involving humans,
a compound found in soy known as genistein has been found to impair
sperm as they swim toward the egg. Even tiny doses of the compound
in the female tract could destroy sperm.
What's more, researchers explain avoiding soy around a woman's
more fertile days of the month might actually aid conception.
Genistein can be found in all soy-containing products, including:
- Soy milk
- Many vegetarian foods
- Some pre-packed meals and pizzas
Researchers tested what happened to human sperm when it was exposed
to genistein in a dish in the laboratory: The soy chemical was found
to create a premature reaction in the sperm, forcing them to peak
long before they could fertilize an egg.
In real life, this does not usually occur until the sperm have
been inside the female for some hours and are close to completing
their long swim toward the egg. Without the presence of genistein
around a woman's womb, sperm would peak as they should--far closer
to completing their journey to the egg.
Moreover, what was surprising and telling about soy's harmful effects
on human health was that it took smaller doses of genistein to create
infertility problems in human females than in mice.
Based on the findings, a spokeswoman for the Vegetarian Society
said that for anyone trying to become pregnant, avoiding soy products
for a few days a month is worth a try ... even if there is a slim
chance it will aid in fertility.
News June 21, 2005