PROBLEM TO BE SOLVED: To provide compositions useful for the maintenance and improvement of intestinal function.SOLUTION: The invention provides a composition containing milk proteins selected from casein, milk protein concentrate (MPC), whey protein, whey protein concentrate (WPC), whey protein isolate (WPI), α-lactalbumin, β-lactoglobulin, lactoferrin, and the like, and fermented milk-derived proteins derived from fresh cheese and the like, as protein, oil and fats as a lipid, and isomaltulose as a carbohydrate; and having a promoting effect of villus growth of the small intestine.SELECTED DRAWING: None【課題】腸管機能の維持・改善に有用な組成物の提供。【解決手段】タンパク質としてカゼイン,乳タンパク質濃縮物(MPC),ホエイタンパク質,ホエイタンパク質濃縮物(WPC),ホエイタンパク質分離物(WPI),α-ラクトアルブミン,β-ラクトグロブリン及びラクトフェリン等より選択される乳タンパク質及びフレッシュチーズ等に由来する発酵乳由来タンパク質、脂質として油脂、及び糖質としてイソマルチュロースを含有し、小腸の絨毛成長を促進作用を有する組成物【選択図】なし