The most common cause of weight retention is not having the proper level of restriction. Another issue would be lack of exercise. Exercise is key in any weight loss program. Building muscle mass increases one’s metabolism. Long-term Band weight loss maintenance requires developing good habits during your weight loss phase: exercise, eating slowly, watching your portion sizes, limiting treats, etc. Regular exercise such as walking 4-6 times per week for 30 minutes will help you lose the weight and keep it off. If you’re focusing on these 3 things and you are not losing, you could probably benefit from another fill.