Controlled Trial Evaluating the Efficacy of Protein Supplementation in the Short Term After Bariatric Surgery

The main objective will be to evaluate the effect at 5 weeks of nutritional management associated with protein supplementation (adapted to the post-operative period) on the maintenance of lean body mass at the whole body in obese patients after a sleeve gastrectomy. Secondary objectives will assess protein intake, food safety, the effect of protein supplementation on body fat in the entire body and the metabolic rate and the impact on quality of life and post-operative joint pain.