Red meat and excess body fat are linked to a heightened cancer risk, according to a report released by the World Cancer Research Fund and the American Institute for Cancer Research yesterday. The 571-page report showed that approximately 40 percent of all cancers are linked to food, body weight and a lack of exercise. The researchers examined more than 7,000 studies over a five-year time period and found that extra weight, especially around the waist, might lead to cancer of the esophagus, pancreas, kidney, colon and uterus, in addition to postmenopausal breast cancer. They recommend exercising at least 30 minutes a day and limiting alcohol and high-fat food consumption in order to keep extra weight off. Red meats, which are linked to colorectal cancer, can be replaced with poultry, fish and eggs.