Number of foods with function claims in Japan 2024, by ingredient
As of June 2024, the largest share of health foods with function claims registered at the Consumer Affairs Agency in Japan was promoting the health effects of gamma-Aminobutyric acid (GABA), with 807 products.
Functional foods are labeled with claims based on scientific evidence for the effectiveness of the ingredients under the manufacturers' and distributors' own responsibilities. Since the introduction of labeling regulations in 2015, over seven thousand products have been registered in total.