When it comes to the amount of steroid hormones we're exposed to when the foods supply,

milk products, dairy products supply about 60 to 80 percent of ingested female sex steroids.

I've talked about the effects of these estrogens and progesterone in men

and prepubescent children, how milk can take and spike estrogen levels

within hours of consumption, but in terms of effects on women.

I talked about the increased endometrial cancer risk and postmenopausal women.

But what about reproductive-age women?

Might dairy hormones affect reproduction?

We've known dairy food intake is sometimes been associated with infertility.

However, little is known with regard to associations

with reproductive hormones or an ovulation, meaning, you know, how might dairy do it,

by affecting how the uterus prepares or affecting the ovary itself. The researchers found

that women who ate yogurt or cream had about twice the risk of sporadic and ovulation,

meaning failure of ovulation.

So, you know, some months there was just no egg to fertilize at all.

Now we know most yogurt these days is packed with sugar.

Even plain Greek yogurt can have more sugar than a double chocolate,

glazed cake, Dunkin' Donon, but they

controlled for that.

And the results remained after adjusting for the sugar content, which suggests that the risk

of anaovulation was independent of the sugar content included in many yogurts.

Now, we don't know if this is just a fluke or exactly what the mechanism

...