Roux-en-Y gastric bypass has been performed for the past 50 years and has been well-studied, producing the best long-term results.
Gastric bypass surgery reduces the size of the stomach and reroutes a small portion of the small intestine so you feel full after eating only a small amount of food and absorb less calories.
Due to extensive experience with Roux-en-Y gastric bypass, this procedure has proven to be one of the safest surgical weight loss methods available. Additionally, this procedure is highly successful and known for its long-term effectiveness of maintaining weight loss.
More information about Roux-en-Y gastric bypass surgery (American Society for Metabolic and Bariatric Surgery)