Experimental bariatric surgery was performed to prevent weight gain. Studies in animals have shown that groups of rats or mice often gain weight over the observation period of a study36, and we consider this model to be efficient for experimental gastric restriction. Not only was weight gain prevented in the restrict group, but weight was lost in 10 days; a total of 4% of the initial weight. The control and sham groups gained weight over the 10-day study period; 11% and 5.2%, respectively, of the initial weight gained.