Hiroko Kato, one of our former interns, was interviewed concerning vegetarianism/veganism and Japan. See https://www.zoomjapan.info/2023/11/14/n135-encounter-vegan-writer-kato-hiroko/
Here are articles that Hiroko wrote while a VRG intern.
https://www.vrg.org/journal/vj99sep/1999_sep_vegetarianism_japan.php
https://www.vrg.org/journal/vj99nov/1999_nov_japanese_holiday.php
https://www.vrg.org/journal/vj2003issue3/2003_issue3_noodles.php
For information on VRG internships, see https://www.vrg.org/student/index.php