Only about five years ago, every patient of mine who finished chemotherapy was given a vitamin cocktail to further reduce colon cancer risk. It was calcium, selenium, vitamin E and folic acid.

Over the last three years, folic acid has been shown to increase growth of polyps, and in patients with metastatic disease  it may shorten life. The protective value of vitamin E has been questioned, and there was evidence that it might increase prostate cancer risk. Selenium did not show benefit. Read the rest of this entry »