PROBLEM TO BE SOLVED: To provide a preventing and improving agent for cancer which is really effective against cancer, not a mere symptomatic therapy and reduces side effects.SOLUTION: The preventive and improving composition for cancer includes 5-aminolevulinic acid (ALA), its derivative or a salt thereof or 5-aminolevulinic acid (ALA), its derivative or a salt thereof and at least one iron compound as active ingredients and a food or a food material for preventing and improving cancer added with the composition are provided.COPYRIGHT: (C)2011,JPO&INPIT【課題】がんに対して、単なる対処療法ではない、真に有効で副作用の低い予防・改善剤を提供すること。【解決手段】5-アミノレブリン酸(ALA)若しくはその誘導体又はそれらの塩や、5-アミノレブリン酸(ALA)若しくはその誘導体又はそれらの塩と1種又は2種以上の鉄化合物とを、有効成分として含有するがんの予防・改善組成物や、該組成物を添加したがんの予防・改善用食品又は食品素材。【選択図】なし
