"Studies have shown that people on plant-based diets tend to have significantly lower cancer rates than those on meat-based diets, according to a Cancer Project [a U.S. nonprofit health organization] handbook...
People in rural Asia and Africa, for example, where traditional diets are based on rice or grains and a mix of starchy vegetables, fruits and beans, generally avoid cancer, according to the handbook. When it does strike, they are more likely to survive.
Studies have also shown that diets rich in meat, dairy products, fried foods and even vegetable oils boost hormones such as estrogen, which is linked to breast cancer in women, and testosterone, which researchers suspect plays a role in prostate cancer in men, the handbook reports.
These hormone levels fall significantly in both men and women when they reduce the amount of fat in their diets.
If you're looking to trim fat, though, simply cutting beef and switching to low-fat dairy products won't do, Renideo said. Though the percentage of calories from fat is higher in beef than it is in chicken or fish, the difference is slight. The leanest beef, for example, derives nearly a third of its calories from fat, according to the Cancer Project, while white meat chicken and tuna derive nearly a quarter of their calories from fat.
And dairy products -- even fat-free or low-fat -- play a role in cancer growth as well, according to the Cancer Project. Studies have shown, for example, that drinking milk raises the levels of insulinlike growth factor in the bloodstream. IGF-I, the handbook says, is a powerful stimulus for cancer cell growth."
"Plant-based diet wages war against cancer"
Orlando Sentinel, May 27, 2007
http://tinyurl.com/36cpw4
