PROBLEM TO BE SOLVED: To provide a low-cost and high-safety QOL improving agent for improving the health of mind which can be easily ingested.;SOLUTION: There is provided a QOL improving agent containing sulfur-containing amino acid, particularly a QOL improving agent containing one or more types of sulfur-containing amino acid selected from cycloalliin, S-methyl cysteine sulfoxide, S-propyl cysteinesulfoxide, S-allyl-L-cysteinesulfoxide, and S-1-propenyl-L-cysteinesulfoxide. A QOL improving agent in which sulfur-containing amino acid is contained in onion extract is particularly preferable.;SELECTED DRAWING: None;COPYRIGHT: (C)2018,JPO&INPIT
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