In Brief

November 1997 Issue

New Cancer-Diet Link?

It's been estimated that 50% to 90% of colon and rectal cancers are caused by diet. The links to increased risk include too much fat and too little fiber. Now, research suggests refined sugar may share in the blame, by causing high insulin levels, especially in those who are overweight. Elevated insulin, say some experts, can trigger the growth and development of tumor cells in the colon. Researchers in Italy questioned more than

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