2. Moize et al. evaluated food consumption after 93 RYGB patients finding that inadequate protein intake is related to protein intolerance up to one year. Protein intake increased significantly over the first postoperative year from 45 g at 3 months, 46 g at 6 months, and to 58 g at 12 months. Low protein intake along the first year after RYGB is mainly related to intolerance to rich-protein food such as animal protein, mainly red meat.