Weight loss surgery requires a bit of preparation from your end. Because weight loss surgery cannot work wonders alone, you’ll need to get used to some lifestyle changes that need to be carried out after the surgery. This is why your surgeon might ask you to stick to a certain diet for a while before your surgery. This diet will depend on your metabolism and the type of surgery you will be having. Shortly before your surgery, you might be asked to go on a strictly liquid diet to prepare your digestive system. If your surgery involves changes to the intestines, you might have to use a laxative to clear out your digestive system.  Before your surgery, you’ll have to quit smoking and consuming alcohol and avoid taking any blood-thinning medication. Make sure that you stick to any other instructions your surgeon will give before the surgery.