Eating in Japan with Dietary Restrictions: A Practical Guide

Japan is not, historically, a vegetarian-friendly cuisine. Dashi — the foundational stock of Japanese cooking — is almost always made from katsuobushi (dried bonito flakes), kombu kelp, or both. This means that miso soup, the most ubiquitous item on a Japanese table, often contains fish stock even when it appears to be entirely vegetable-based.

This creates a specific problem for vegetarians and vegans that goes beyond simply avoiding visible meat: the flavoring base of many Japanese dishes contains animal products that are not obvious from the menu.

This is solvable. It requires preparation.

For Vegetarians

Shojin ryori: Buddhist temple cuisine, the original Japanese vegetarian cooking. Made without meat, fish, or animal products (and also without alliums — onions, garlic, chives). Available at temple restaurants in Kyoto, Koya-san, and other Buddhist centers. The quality is often exceptional.

Tofu restaurants: Kyoto has a specific tradition of tofu cuisine (yudofu, obanzai) at restaurants that specialize in vegetable and tofu preparations. The stock may contain kombu rather than fish.

Indian and other non-Japanese restaurants: Japan’s major cities have Indian, Thai, Turkish, and other cuisines that provide reliable vegetarian options.

Conveyor-belt sushi: Many items are vegetable or egg-based. Cucumber rolls, pickled vegetable rolls, tamagoyaki (egg) are available at almost every kaiten-zushi.

For Vegans

More challenging. The dashi problem applies broadly, and many otherwise vegan items contain dairy or egg components that are not marked.

The phrase “dashi nashi de onegaishimasu” (without fish stock, please) is useful but only works in establishments that can accommodate the request. High-end restaurants often can; casual restaurants often cannot.

Convenience store items are increasingly labeled for allergens and dietary preferences. Some combini chains now mark vegan items explicitly.

For Gluten-Free Travelers

Soy sauce (shoyu) contains wheat. This affects a large proportion of Japanese cooking. Gluten-free soy sauce (tamari, which is traditionally wheat-free, though check the label) is available in some restaurants and supermarkets.

Rice-based dishes, grilled fish without sauce, and plain tofu are safe bases. Soba is made from buckwheat (naturally gluten-free) but is usually mixed with wheat flour in commercial preparations — ask specifically about the ratio.

A Useful Card

Print or save a card in Japanese that explains your restrictions clearly. Several apps and websites provide pre-written Japanese dietary restriction cards for vegetarian, vegan, gluten-free, and allergy-based needs. Showing this card when ordering saves time and reduces misunderstanding.

The Realistic Assessment

Japan with severe dietary restrictions requires more planning than Japan without them. The preparation — learning key phrases, identifying appropriate restaurants in advance, communicating clearly — takes effort. The reward is a cuisine that, in its appropriate contexts (shojin ryori, tofu restaurants, high-end kaiseki that can accommodate requests), is extraordinary.