| abstract |
(57) [Summary] [Solution] A food material fermented with edible Bacillus subtilis such as Bacillus natto, for example, natto, fermented by-products such as lees and broth produced during the production process of natto, and solvent extraction method, etc. A natural menaquinone-7 high-content lipid extracted by the above, and a composition for preventing and / or treating osteoporosis containing the lipid as a main component. [Effect] Since a food material is used as a raw material, the required amount of natural menaquinone-7 as a food can be easily ingested. |