PROBLEM TO BE SOLVED: To provide a collagen production promoter which can be easily handled and becomes effective with a small amount, in particular a collagen production promoter producing the type III collagen, and to provide a food, a cosmetic, a medicine, a pet food and feed containing the same.SOLUTION: Since an egg shell membrane, in particular chicken egg shell membrane, and collagen are contained in the collagen production promoter, the handling of the collagen production promoter is easy and highly effective with a small amount. The food, cosmetic, medicine, pet food and feed containing the same can be provided.COPYRIGHT: (C)2012,JPO&INPIT【課題】容易に取り扱いができ、少量で効果を発揮するコラーゲン産生促進剤、特にIII型コラーゲンを産生するコラーゲン産生促進剤、ならびにそれを配合した飲食品、化粧品、医薬品、ペットフード、飼料等の提供。【解決手段】卵殻膜、なかでも鶏卵の卵殻膜及びコラーゲンを含有することで、取扱いが容易で少量で効果の高いコラーゲン産生促進剤、及びそれを配合した飲食品、医薬品、化粧品、ペットフード、飼料等が提供出来る。【選択図】図3