Simple is not bad. I was at a lecture 25 yrs ago on Pycnogenol that was being brought into the U.S. from France and we were told "may prevent cancer" ... that was Simply music to my 57 yr old ears. And still going strong on this Simple information.

Wonder if your friend was taking Simple supplements called antioxidants

Millions are receiving the cancer(s) diagnosis and wonder how their intake of antioxidants is.

Here is some NOT highly scientific info on what free radicals are doing:

Antioxidants and Cancer Prevention - National Cancer Institute

Kiwi: Do some research on the wonders of the Grape....

Caroline, did you read this article?

Quoting from it;

Overall, these nine randomized controlled clinical trials did not provide evidence that dietary antioxidant supplements are beneficial in primary cancer prevention.

In some preclinical studies, antioxidants have been found to promote tumor growth and metastasis in tumor-bearing mice and to increase the ability of circulating tumor cells to metastasize

The emphases are mine in both quotes.

I read it but overall more positive than negative.