Why rapid weight loss can put one at risk for gallstones? what if the patient was underweight with low body fat to start with? what if the lost weight are water retention weight? is she still at risk? is 4lbs weekly weight fluctuation too much?

Fat mobilization: Rapid weight loss occurs from fat mobilization, including cholesterol and cholestrol is a content of some gall stones. You should aim of about one pound/week for weight loss. Wish you good health! - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.