In some of the messages I saw reference to prenisone and weight gain. When my son was 15, he was on 100mg prenisone a day. The nutritionist at Univ. Hospitals in Iowa City gave him a diet. It was high in protein and vegetables and extremely low in carbohydrates. If he wanted a treat, he could have 2 vanilla wafers. He stayed on that for a year and did not gain any weight – just had horrible acne!