British scientists from the University of Leicester found in red grapes, peanuts and blueberries plant compound resveratrol, which protects the body from colon cancer. The discovery was reported by The Guardian newspaper. The research findings are based on more than a decade of work by the team, which previously found that purified resveratrol can slow tumor growth in mice by reaching the intestines in an undigested form. In the new project, the experts intend to conduct trials on people aged 50 to 73 who have been screened for intestinal polyps - small neoplasms that can develop into cancer if left untreated. As part of the experiment, all patients will have their polyps removed. One group will then be given aspirin or a combination of aspirin and metformin (diabetes medication) for three years. The other group will take purified resveratrol or a placebo for one year. All patients will then have a colonoscopy to determine if the polyps have started to grow back. If the trial is successful, any of the treatments tested may be offered to reduce the risk of intestinal polyp formation.