There has been some research that indicates beta-carotene can actually cause cancer, but that’s only possible if you eat these vegetables in mega quantities. A substance called falcarinol, found in carrots, might cause some cancer cells to grow more slowly, but carrots must be eaten raw to get its full effect. The cancers that beta-carotene targets are lung, mouth, throat, stomach, intestine, bladder, prostate and breast.
7. Spinach is the vegetable known as the “gold standard” of all green, leafy vegetables; it has the most vitamin E and lutein to ward off cancer of the liver, breast, prostate and colon. Spinach has a carotenoid, called neoxanthin, that can cause prostate cancer cells to self-destruct, and is then converted in the intestines to something called neochromes, which put prostate cancer cells into a state of stasis so that they can’t reproduce.
8. Garlic has the power to increase activity of immune cells that fight cancer and help break down cancer-causing substances. Garlic contains allium compounds that help block carcinogens from entering cells, therefore slowing tumor development. Garlic has anti-bacterial effects against a bacteria found in the stomach, helicobacter pylori, that is known to promote cancer there.
9. Pineapple is an excellent source of the enzyme bromelain; it’s a proteolytic enzyme, which means it helps digest protein. That’s important, since fibrin is a protein that promotes blood clotting and slows down blood circulation in the body. Studies have shown that bromelain might protect against breast and lung cancer, and it’s also been used as a complementary tumor therapy.
10. Apples contain quercetin. It’s a major bioflavenoid in our diet, and it has the ability to reduce lung cancer risk and the growth of some prostate cancer cells. It does this by blocking the flow of oxygen and other nutrients to cancer cells. Quercetin is also a phytoestrogen, which means it can mimic the effects of estrogen. The quercetin you get from citrus fruits can reduce the growth rate of breast cancer cells by 50 percent.