| abstract |
(57) [Summary] [Object] To provide calcium oxide and / or calcium hydroxide having an excellent absorption rate to the human body and excellent depositability to bone, a beverage containing the same, and a method for producing the same. [Constitution] Calcium oxide in which amino acid coexists and / Alternatively, it is preferably calcium hydroxide, which contains cystine as an amino acid. This compound can be produced by heating and calcining a raw material containing calcium at 800 to 980 ° C. under oxygen-blocking conditions, and then forcibly cooling it. |