The main reason that contributes to weakness and slow recovery after surgery is the injury of intestine villus which is the main place of nutrition absorption. CELFULL PROTEIN powder is rich in high-quality sialic acid from extracted from natural bird nest, non-GMO isolated soy protein, isolated whey protein from American organic farm, good- quality lactobacillus plantarum from Japan, cow colostrum within 24 hours of calving, can help repair intestine villus, improve resistance.