CPC A61K 9/5115 (2013.01) [A23K 20/28 (2016.05); A23K 50/80 (2016.05); A23L 33/16 (2016.08); A61K 8/25 (2013.01); C01B 3/06 (2013.01); C05G 3/00 (2013.01); A23V 2002/00 (2013.01); A61K 2800/621 (2013.01)] | 19 Claims |
1. A composite composition comprising:
a silicon fine particle having a capability of generating hydrogen; and
a silicon suboxide (SiOX, wherein x is ½, 1, or 3/2) and/or a mixed composition of the silicon suboxide and silicon dioxide, at least partially covering a surface of the silicon fine particle,
wherein a concentration of a hydroxyl group on the surface of the silicon fine particle is 5×1013/cm2 or more, and
wherein the composite is orally ingestible.
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