Cancer Research UK is more forthright in condemning those who hype resveratrol for its cancer- inhibiting properties. "Many vitamin and mineral supplements were believed to be potent cancer fighters until trials and large studies showed they are usually ineffective and can even increase the risk of cancer in some cases," says the charity's Yinka Ebo. "Resveratrol has a few anticancer properties when tested in animals or cells grown in a lab. But, to date, there is no strong evidence that resveratrol supplements can prevent cancer in people."

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