Concerning the odontoceti in which lots of mercury has been accumulated, guidelines for the eatable amount of the whale meat, together with those of other fishes and shells, including alfonsin, have been specified in Japan as well, targeting at pregnant women.
日本でも、水銀の含有濃度が高いハクジラ類については、キンメダイなど他の魚介類と並んで、妊婦を対象とした摂取量に関するガイドラインが定められている。