🇯🇵 Foods banned or restricted in Japan but legal in the US

Overview

Japan operates a positive list system for food additives under the Food Sanitation Act: only substances explicitly approved by the Ministry of Health, Labour and Welfare (MHLW) may be used. Japan has some of the world's strictest agricultural chemical residue limits and prohibits several artificial preservatives, dyes, and growth hormones widely used in the US.

Key differences vs. the United States

Brominated vegetable oil (BVO) has not been permitted as a food additive in Japan since 2010, while the US FDA only revoked its authorisation in July 2024 with a compliance deadline of August 2025 (MHLW; FDA). Ractopamine is not approved for use in Japanese livestock production under the Ministry of Health, Labour and Welfare (MHLW) veterinary drug lists, so US pork and beef fed ractopamine cannot enter the Japanese market. rBST/rBGH is not approved for use in Japanese dairy cattle. Potassium bromate is not fully banned but is tightly restricted: Japan sets a maximum residual limit of 0.5 μg/g in finished bread (compared with no residue limit in the US), and most Japanese bakers voluntarily eliminated it decades ago.