Excess Weight Tied to Eight More Cancers.

According to an analysis of more than 1,000 epidemiologic studies, being overweight or obese increases the risk of eight cancers: stomach, liver, gallbladder, pancreas, ovary, and thyroid cancers, multiple myeloma, and meningioma. Researchers initially identified five other malignancies linked to excess body weight in 2002, including breast and endometrial cancers.