42 year old obese patient comes with gallstones. She is on cholesterol lowering drugs and her weight is reduced 10 kgs in the last month. What might be the cause for gallstones

Risk factors for gallstones include- Obesity Rapid weight loss Hemolytic disorders Cholesterol lowering drugs Pregnancy High carbohydrate and lipid diet Cholesterol lowering drugs reduce the cholesterol in the blood but secretion of cholesterol into bile is increased. Show they cause gallstones.