Gallstone Risk

Eating bad fats increases the risk for developing gallstones.

Recent finding: A 14-year study of about 46,000 men found that those who consumed the most trans fats (4.5 g per day) had a nearly 25% higher risk for gallstone disease than those who ate the least amount of trans fats (1.4 g per day).

Theory: Trans fats increase LDL "bad" cholesterol and lower HDL "good" cholesterol, which may lead to gallstone formation.

Self-defense: Avoid trans fats by checking the nutrition label on processed foods, such as crackers, chips and baked goods.