Regular, vigorous, exercise may decrease the risk of gallstones. One study, reported by WebMD, found that men who performed endurance activities such as jogging, running, racquet sports, and brisk walking for 30 minutes five times a week, experienced a 34 percent reduction in risk for gallbladder disease. The amount of benefit derived from exercise was more dependent on intensity than type of exercise. Researchers theorize that exercise helps to normalize blood Sugar and insulin levels which may contribute to gallstones, if abnormal