Body mass index (BMI) more than 25 is considered overweight and over 30 is considered obese. BMI is calculated by formula BMI = Weight in Kilograms / (height in meters x height in meters). If you want to lose weight then gradual weight loss is advisable. There are various causes of overweight like increased food intake, short meal time gaps, and decreased physical activity. Other reasons are mostly medical conditions like hypothyroidism, Cushing’s syndrome, steroid intake as in your case etc. when you take multiple medications at a time there are chances of interaction. It might be possible that hydroxcut prevent absoption of steroid and mycofenolate. Advice 1. Adopt natural ways of gaining weight 2. Exercise –workout in gym at least for half an hour for 4 – 5 days in a week regularly. Start with a balanced mix of cardio, weight training and flexibility exercises 3. Avoid junk foods and high calorie foods like chocolate, cake, butter etc 4. Drink 3 – 4 liters of water daily 5. Chew the food properly to make it easily digestible 6. Avoid excess intake tea and coffee after meal as they contain tannin which hinders absorption of minerals like iron Thanks