Reflecting higher health consciousness and an ever-rising number of fitness enthusiasts, sports drinks containing amino acids are continuing to enjoy brisk sales in Japan.
Professional athletes have long been taking amino acid supplements to boost muscle strength. But an increasing number of general consumers are ingesting them to lessen fatigue, maintain health and even lose weight.
Initially sold at health food stores, products containing amino acids are now widely available in the form of drinks, jellies, powders and pills, and can be purchased at general retailers or common vending machines. Cosmetics makers have jumped on the "amino acid fad" as well, touting them as the main ingredients in their beauty products.