Health claim evidence requirements in Japan.

In the early 1980s the Japanese scientific academy defined a functional food as a food having a tertiary or physiologically active function. The current Japanese "Food with Health Claims" include 2 categories. For the first category, "Food with Nutrient Function Claims," the label may be freely used if a product satisfies the standard for the minimum and maximum levels per daily portion usually consumed. The second category is defined as "Food for Specified Health Uses" (FOSHU). FOSHU foods are those that contain dietary ingredients that have beneficial effects on the physiological functions of the human body, maintain and promote health, and improve health-related conditions. Health claims on these foods correspond to the category of "other" function claims of the Codex Alimentarius. However, claims of disease-risk reduction are not currently allowed under FOSHU with an exception for calcium and folic acid. Manufacturers can emphasize the characteristics of their products and promote sales by labeling or claims. Therefore, the labeling should be clear and correct and avoid any chance of misinterpretation. The labeling of health claims on foods should always be based on scientific evidence. Any manufacturer who applies to the government for approval under the FOSHU code for its product must tabulate both published available publications and internal reports on the effectiveness of the product and/or its ingredients and provide a summary of each available publication or report. The tabulation must include in vitro metabolic and biochemical studies, in vivo studies, and randomized controlled trials on Japanese people. The overall philosophy of the Ministry is to maintain and improve the health status of people and to prevent chronic noncommunicable diseases through an approach that involves a well-balanced diet as well as through the use of "health foods" including "Food with Health Claims."