The amount of weight you will lose after bariatric surgery depends on many factors, including your:

• Age
• Pre-surgery weight
• Overall health
• Chosen surgical procedure
• Ability to exercise
• Devotion to exercise and follow-up treatments
• Motivation and support from family members and friends

However, studies show that after 10 years, gastric banding patients manage to maintain at least 50 percent of their targeted weight loss amounts, while after 10 to 14 years, Roux-en-Y gastric bypass patients still maintain 50 to 60 percent of their targeted weight loss amounts.