You’ll likely begin to lose weight shortly after your surgery, with the most noticeable drop in the first few weeks and months. Generally, patients lose about 50% of their excess weight within the first six months, depending on how much they weighed before the surgery. The total weight loss journey typically spans 12 to 18 months. The heavier your starting weight, the quicker you might see initial results. It’s not uncommon for patients to lose between 15 to 30 pounds within just the first few weeks post-surgery. The process of weight loss starts right away for most individuals.