Dietary supplement, anti-fatigue agent or physical endurance enhancer, functional food, or cosmetic

An agent for promoting absorption of coenzyme Q10 into a body, comprising at least phosphatidylinositol as an active ingredient.

A functional food having an effect of promoting absorption of coenzyme Q10 into a body, comprising at least phosphatidylinositol as an active ingredient.

A kit comprising an anti-fatigue agent and/or a physical endurance enhancer comprising phosphatidylinositol as an active ingredient and an anti-fatigue agent and/or a physical endurance enhancer comprising coenzyme Q10 as an active ingredient in combination for the purpose of simultaneous ingestion of the phosphatidylinositol and the coenzyme Q10.

A kit comprising an anti-fatigue agent and/or a physical endurance enhancer comprising phosphatidylinositol as an active ingredient and an anti-fatigue agent and/or a physical endurance enhancer comprising coenzyme Q10 as an active ingredient in one package for the purpose of simultaneous ingestion of the phosphatidylinositol and the coenzyme Q10.

A method of preparing phosphatidylinositol, comprising at least the following step of:

• reacting a mixture of phospholipid derived from soybean with an enzyme which is derived from the genus Candida and is substantially incapable of decomposing the phosphatidylinositol and is capable of decomposing all of phosphatidylcholine, phosphatidylethanolamine, and phosphatidic acid to increase the content of the phosphatidylinositol in total phospholipids to 50 mol % or more.

A use of phosphatidylinositol and coenzyme Q10 for preparing a food, a cosmetic, or an anti-fatigue agent and/or a physical endurance enhancer each having an anti-fatigue effect and/or a physical endurance-enhancing effect.

A method of ameliorating fatigue and/or enhancing physical endurance, comprising simultaneously ingesting phosphatidylinositol and coenzyme Q10.