Red grape chemical may help prevent bowel cancer

Resveratrol, a chemical found in red grapes, is effective at preventing bowel cancer in mice, but only in low doses, according to new research. Previous research looked at high doses of purified resveratrol to study its potential to prevent cancer. This is the first study to look at the effects of a lower daily dose - equivalent to the amount of resveratrol found in one large (approx. 250ml) glass of red wine - comparing it with a dose 200 times higher.