Eating in Tokyo With Dietary Restrictions: A Practical Guide
Tokyo is one of the best places on earth to eat, and one of the trickiest if there are things you can’t eat. The food isn’t hostile to restrictions. It just wasn’t built around them.
Here’s the short version: the problem is rarely the dish you can see. It’s the stock, the sauce, and the quiet assumption that a little bit doesn’t count.
Once you know where those hide, the city gets a lot bigger.
Tokyo won’t make your diet easy, but it does make it possible, and it pays back anyone who learns to spot one or two ingredients.
Three hidden ingredients to watch for
If you remember nothing else, remember dashi, soy sauce, and mirin.
Dashi is the fish and kelp stock under a huge amount of Japanese cooking. Miso soup, simmered vegetables, noodle broth, dipping sauces, savoury egg dishes, even some rice seasonings usually start with it.
Most dashi contains katsuobushi, dried bonito flakes. So a bowl of what looks like plain vegetables can be non-vegetarian, and there’s no way to tell by looking.
Soy sauce comes next. It’s usually brewed with wheat, so standard shoyu isn’t gluten-free. Tamari exists and is often wheat-free, but restaurants don’t use it by default.
Then there’s mirin and cooking sake. Both are alcohol-based sweeteners that turn up constantly in home-style cooking, which matters if you avoid alcohol for religious or personal reasons.
You won’t see any of these on an English menu. Asking about them by name gets you much further than asking whether a dish is vegetarian.
Vegetarian and vegan: where to look first
Shojin ryori, the Buddhist temple cuisine served at some restaurants around temple districts, is the closest thing Tokyo has to a built-in vegan tradition. It’s usually a full course, often booked ahead, and more of an occasion than a Tuesday lunch.
Day to day, most people end up mixing three things.
Dedicated vegan and vegetarian restaurants have multiplied over the past decade, mostly around Shibuya, Nakameguro, Harajuku, Asakusa, and the more international parts of the city. Happy Cow and similar apps really do help here.
Indian, Nepali, and Middle Eastern restaurants are everywhere, and they’re often the fastest dependable option, especially for a working lunch near a coworking space. Vegans should still ask, though. Curries are often made with butter, cream, or ghee, and naan dough can contain milk or egg.
Konbini and supermarkets cover the gaps. Onigiri with umeboshi or kombu, natto packs, tofu, salted edamame, plain rice, cut fruit, and soy milk add up to a decent meal without much effort.
Ramen gets its own warning. Vegetarian ramen exists, and some shops do it really well, but a regular “vegetable ramen” is almost always built on pork or chicken broth. It’s something you go looking for on purpose. You won’t stumble into it.
Halal and no-alcohol eating
Tokyo’s halal scene is small but real, and it’s grown noticeably around tourist and student areas.
Asakusa, Shinjuku, Shin-Okubo, and the neighbourhoods near big universities tend to have the most certified or Muslim-friendly restaurants. A few halal ramen and halal wagyu places are well known enough to show up in English guides.
Halal grocery stores in Shin-Okubo and around Ueno carry meat and pantry staples, so if you have a kitchen, cooking at home gives you the most control.
Alcohol is the harder part. Mirin and cooking sake go into lots of dishes with no visible alcohol at all, and staff may not think to mention it because they assume it cooks off.
If it matters to you, ask about mirin by name.
Gluten-free, and why it is harder here than it looks
Gluten-free is probably the hardest restriction to manage in Japan, because wheat sits in the foundations of the food, not on top.
Soy sauce, most miso, many noodles, tempura batter, and countless sauces contain wheat. Even soba, which is buckwheat, is usually cut with wheat flour unless the shop specifically advertises juwari soba, meaning one hundred percent buckwheat.
Japanese curry is another trap. Common boxed roux such as House Vermont Curry lists wheat flour and pork extract, so a “vegetable curry” made from roux is neither vegetarian nor gluten-free. Even a konbini kombu onigiri can list wheat, because the kombu filling is simmered in soy sauce.
Rice is where you’re safer. Plain rice, carefully seasoned rice bowls, grilled fish and meat ordered with salt instead of sauce, sashimi with your own tamari, and Japanese sweets made from rice flour are all fair game.
Plenty of gluten-free residents carry a small bottle of tamari, and nobody will bat an eye.
Awareness of celiac disease is still limited, so if it comes across as a preference, it may be handled more loosely than you’d like. But celiac disease isn’t the same as a wheat allergy, and saying “wheat allergy” can backfire: the kitchen may check for wheat only and miss barley, rye, or a shared fryer and pot. Say it’s a medical condition, name all three grains, and ask about shared oil and equipment. If a restaurant can’t confirm those points, don’t assume it’s fine. Treat it as unsafe.
Getting your allergy taken seriously
Japan requires nine allergens to be labelled on packaged food: shrimp, cashew nut, crab, walnut, wheat, buckwheat, egg, milk, and peanut. Cashew nut was added in April 2026, and labels have until the end of March 2028 to catch up, so older packaging may not list it yet. A longer list of recommended labels covers things like soy, sesame, and various fruits and nuts.
That makes packaged food fairly easy to read once you learn to find the allergen box, which is usually printed near the ingredients.
Restaurants vary more. Chains often post detailed allergen charts on their websites, and that’s one of the best reasons to eat at a chain when you’re tired and don’t have it in you to negotiate. The curry chain CoCo Ichibanya, for example, publishes an allergen chart and offers a curry made without several major allergens; check the chart for which ones.
Small independent places may have no formal information at all, and a kitchen that can’t easily keep ingredients apart. That’s not indifference. It’s a small operation with one wok.
Your best bet is to ask before you sit down, not after you order.
Phrases that actually work
Vague questions get vague answers. Name the ingredient and you’ll get a real one.
Instead of asking whether something is vegetarian, ask whether it contains dashi, meat, or fish. Instead of asking whether it’s gluten-free, ask whether it contains wheat (and, for celiac disease, barley and rye) and whether they can leave out the soy sauce.
A few worth keeping in your notes app:
- 出汁は入っていますか (dashi wa haitte imasu ka): does it contain dashi?
- 肉と魚は食べられません (niku to sakana wa taberaremasen): I cannot eat meat or fish
- 小麦アレルギーがあります (komugi arerugi ga arimasu): I have a wheat allergy
- セリアック病のため、医学的に小麦・大麦・ライ麦を食べられません。調味料や、揚げ油・調理器具の共用も確認させてください (seriakku-byo no tame, igakuteki ni komugi, omugi, raimugi o taberaremasen. chomiryo ya, ageabura, chori kigu no kyoyo mo kakunin sasete kudasai): because of celiac disease I medically cannot eat wheat, barley or rye; please let me check the seasonings and any shared frying oil or cookware too
- みりんや料理酒は使っていますか (mirin ya ryorishu wa tsukatte imasu ka): do you use mirin or cooking sake?
- 醤油を抜いてもらえますか (shoyu o nuite moraemasu ka): could you leave out the soy sauce?
Showing the Japanese on your phone works better than saying it out loud. It also saves you from the polite nod that really means “I didn’t catch that.”
A weekly routine you can keep up
Most people who eat well here over the long run settle into a rotation instead of hunting every day.
Two or three restaurants you trust near where you work, places where you’ve already had the ingredient conversation and it went well.
A supermarket routine for the evenings you can’t be bothered: rice, tofu, vegetables, and whatever protein fits your rules.
One or two chains with published allergen info, for travel days and late nights.
And a short list of places worth a train ride, for the meals you actually look forward to.
With that in place, the daily worry goes away, and honestly, that worry is the real cost of eating with restrictions in an unfamiliar food culture. Once the routine is set, the food itself is rarely the problem.
FAQ
Is it realistic to be strictly vegan in Tokyo?
Yes, though it takes more planning than in many Western cities. Dedicated vegan restaurants, South and Southeast Asian food, and cooking at home cover most of what you need. The friction is in casual, spur-of-the-moment meals, where dashi is very hard to avoid.
Will restaurant staff be annoyed if I ask about ingredients?
Usually not, especially if you ask politely and early. What causes trouble is a complicated request in the middle of a rush in a small kitchen. Ask at the door, or check a chain’s published chart ahead of time, and you’ll skip most of the awkwardness.
Are there apps worth installing?
Restaurant apps that let you filter by dietary tags help, and so do allergen-lookup and translation apps that can read ingredient labels through your camera. Saving your key phrases as screenshots is low-tech, and it works even without a signal.