(Problems) To provide a highly safe dietetic composition originating in
green coffee beans by which excellent dietetic effects can be obtained and which contributes to the prevention and treatment of
life style-related diseases such as diabetes.(Means for Solving Problems) A dietetic composition characterized by comprising, as the
active ingredient, a polar
solvent extract of defatted
green coffee beans. It is preferable that the above-described polar
solvent extract is an extract obtained by using water-containing
ethanol, still preferably water-containing
ethanol having an
ethanol concentration of from 40 to 90% (wt / wt). It is preferable that the above-described defatted
green coffee beans are those obtained by extracting green coffee beans with N-
hexane to thereby separate oily components therefrom. It is recommended to combine the above-described dietetic composition with one or more members selected from among salacia extract,
evening primrose extract, sesamine and
garcinia. This dietetic composition is
usable as a material for foods, drinks, drugs, or
skin preparations for external use.