Health

Although prostate cancer is the most common cancer among U.S. men, there is good news about the potential for prevention. It’s a slow-growing cancer, typically diagnosed at older ages. Therefore, anything that can slow the growth of these tumors can have a big effect on survival.

For example, research shows that men in Japan are just as likely to have prostate tumors as western men—but far less likely to die from this cancer. One theory is that certain diet or lifestyle factors may slow tumor growth so much that the men die of old age before the […]

The problem with soy is that it is a hugely hot area of research—more than 10,000 scientific papers have been published within just the last decade alone on soyfoods and health. With that level of investigation, there will always be a few studies here and there that show scary findings. By pouncing on those findings—rather than looking at what the majority of the research shows—critics can build a case against soy that sounds credible, even when it isn’t.

Soyfoods are an essentially unique source of isoflavones—which are a type of phytoestrogen, or plant estrogen. So it’s not surprising […]

It still isn’t clear that what we eat as adults will impact our risk for cancer. But there is lots of evidence that what girls eat—especially during puberty—can affect their risk of getting breast cancer in adulthood. The theory is that certain compounds in food impact breast tissue as that tissue is developing, either conferring lifelong protection against cancer or raising risk for cancer.

I wrote several months ago about soyfood consumption during the teen years and how it can protect against breast cancer in adulthood. More recently, Harvard researchers looked at the effect of red meat […]

Many foods—including soy, broccoli, and millet—contain goitrogens, which are compounds that interfere with thyroid function. Most people can eat these foods regularly without problems. Problems do occur in people who have low intakes of the mineral iodine, which is needed for a healthy thyroid.

In the 1950s approximately 10 cases of goiter—a symptom of thyroid problems—were identified in infants consuming soy infant formula. These 50-year-old studies have been used to fuel arguments that soy is dangerous for infants—but in fact, they have no relevance to infants who are currently fed soy infant formula. Today’s formula is fortified with […]