What other dietary factors affect cancer risk?
The following address concerns about diet and physical activity in relation to cancer: 1. There is currently no evidence that the substances found in bioengineered foods now on the market are harmful or that they would increase or decrease cancer risk because of the added genes. 2. Men and women should try to get recommended levels of calcium primarily through food sources. 3. There is no evidence that lowering blood cholesterol levels has an effect on cancer risk. 4. There is no evidence that caffeine use increases the risk of cancer. 5. Fluorides do not increase cancer risk. 6. Folic acid deficiency may increase the risk of colorectal and breast cancer. To reduce this risk, folic acid is best obtained through eating vegetables, fruits, and enriched grain products. 7. Additives are usually present in very small quantities in food, and no convincing evidence exists that any additive consumed at these levels causes human cancers. 8. Insufficient evidence exists to support a specific rol
