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Keto Japanese Food – An Easy Guide to Low-Carb Japanese Cuisine

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Gone keto? Think you’ll be missing out on your favourite Japanese food? I know the feeling. Today I’ll show you the best keto Japanese food that’s still easy to enjoy.


I. Love. Japan. A place with such deeply embedded culture and traditions, that unify an archipelago of fascinating people, history, and cuisine, is one not to be missed.

For people following the keto diet, it is important to eat low-carb, which unfortunately means missing out on many Japanese staple foods. Never fear, for here is a handy list of “Keto Japanese Food” so you can still enjoy restaurants, the country, or even make your own Japanese food!

In this list, we dive deep into Japanese culture, and discover authentic Japanese food that still lives on today to create healthy low-carb meals. These are great for keto diets and other carb-restricted diets. Let’s get into it!

A Quick Introduction to Keto

The ketogenic diet (keto) is one with a simple goal: maintaining a state of “ketosis”. This is a metabolic state in which our natural and primary source of energy comes from fat. For this reason, it is often followed by those trying to lose body fat, as ketosis will draw from fat deposits in a process known as “gluconeogenesis”.

A low-carb high-fat diet like this has been shown to have multiple health benefits (^).

  • Boosted Weight-Loss (^)
  • Ketone Production Improves Brain Health (^)(^)
  • Reduced Appetite and Hunger (^)
  • Improved Cholesterol (^)
  • May Benefit Insulin Resistance and Type 2 Diabetes (Under Supervision) (^)

Understanding that a keto diet is a highly different state of our bodies from most people in the Western world is important. Low-carb and ketogenic diets are drastically different to typical diets encouraged by authorities and others, and can boost health.

In general, most people won’t follow this diet for longer than a few months to a year (maximum). Little research is conclusive on the health effects of long-term ketosis, and it’s not recommened for long-term sustainable dieting. Consulting a nutritionist or dietitian is recommended to follow this

So, at last, here are our recommened low-carb Japanese foods. Enjoy!

Sashimi 刺身

Starting off with the obvious choice, sashimi is raw sliced seafood. This most often includes tuna and fatty fish like salmon and mackerel, but is also made with other fish and shellfish.

It is an important part of sushi and onigiri, but works excellently by itself. In Japan, people often dip sashimi in soy sauce or ponzu before eating it.

Beneficial Salmon Sashi - Keto Japanese Food - Sliced Salmon and Vegetables on Plate

Sashimi also made it onto our other food list: “Healthy Food from Japan“, where we cover in-depth its many health benefits, and also explore the risks.

The nutrients of different seafood and fish naturally vary, so sashimi will vary in nutrition, flavour, and health benefits.

Salmon, for example, is often boasted to be a superfood, providing heart and brain-healthy Omega-3 fatty-acids (^)(^), antioxidant astaxanthin, protein, and vitamins and minerals. Being a source of selenium makes salmon excellent for our immune system, as well! Providing about 30mg per 3oz serving, it is easy to reach the recommended amount of selenium (55mg for most adults) by including salmon in the diet.

Astaxtanthin may even promote longevity by activating FOXO-3 Genes!

To learn more, read: Healthiest Foods for Longevity – From Genes to Greens!

Phosphorus, Potassium and B-vitamins also support, the nervous system, musculoskeletal system, promote healthy hormone balance, reduce inflammation, improve metabolism, and help to prevent kidney stones, lower blood pressure, and more.

Other fatty fish have similar nutritional composition, but are each unique and have different tastes entirely! That makes enjoying them exciting and even easier for most people.

For example, tuna has a lower amount of omega-3s and copper, but contains higher levels of selenium and protein.

More healthy seafood options include mackerel, cod, black cod (sablefish), and squid.

Safety Information: Sashimi is Raw Fish

To be clear, you shouldn’t just go and eat any raw fish.

The reason it’s so popular in Japan is because the country has very strict, high quality standards for seafood. Paired with a high level of experience carried on from ancient times, Japan takes great pride in the level of expertise carried by their fishermen.

Eating sashimi outside of Japan should be done in restaurants with good reputations, so they can be trusted. If you decide to make your own, please refer to this article for more information about sourcing and using fresh seafood.

Miso Soup 味噌汁

Gut-friendly, rich in umami, and oh so relaxing. Once again we have another popular item from our healthy food from Japan list!

Technically fermented soy bean paste, miso would seem to be high-carb
at first glance. But in fact, only a small amount is needed to make
a deep, rich soup.

Miso soup comes in many varieties and is easily customisable to your liking. You can get miso pastes with different strengths, colours, and flavours, such as a light white miso (shiromiso) or the more intense red miso (akamiso). Interestingly, this beloved dish is thought to have first come from the Jōmon era, which likely means over 3,000 years ago!

Some of its main health benefits come from the fact that it is a fermented food, meaning that it’s probiotic, providing us with healthy bacteria to support our own gut bacteria. Believe it or not, these beneficial bacteria (collectively our ‘microboime’) play vital roles in our immune system, brain, organ, and digestive health!

If you make it at home (which I highly recommend – it’s delicious), follow the instructions and do not boil the water! This would kill the healthy bacteria and as such reduce the health benefits.

Shabu-shabu シャブシャブ

Not only is it fun to say “shabu-shabu” (which is in fact onomatopeoia), it’s fun to make, eat, and is low carb. Often being fairly high in fat, if you get the opportunity to eat this dish, it is an excellent addition to the keto diet.

Picture the setting: you, maybe a few friends, maybe family, sitting around a table at a Japanese restaurant. Then over comes a large pot of hot broth (probably kombu dashi*), along with a plate or tray of extremely thin, well-marbled raw meat.

At first you’re confused, but pick up your chopsticks nonetheless. As your waiter gestures, you quickly figure out what’s going on…

You pick up the meat and begin stirring it in the broth, the name “shabu-shabu” comes to make sense, as you hear. And soon you find yourself enjoying delicious meat cooked exactly to your liking!

That, is shabu-shabu.

(*kombu dashi is a light broth made with kombu kelp [get some here] – a highly beneficial source of iodine providing a tempting umami flavour).

Marbled Beef for Shabu Shabu Keto Japanese Food - Thinly Sliced Meat in Tray

The benefits this provides will depend on the type of meat and the quality of the meat. Those of you with a little knowledge of Japan probably know about Wagyu beef. If you can get that or any grass-fed (free-range/pastured) beef, then you’re in for a treat.

Another interesting choice, though not the highest on some people’s lists, is “sakuraniku”.

This translates to “cherry blossom meat”, and describes the resonant pink colour of… Horse meat. Yep!

An apparently flavourful meat, horse is actually eaten across Japan. Most famously, people enjoy it in the prefecture of Kumamoto. Most often, it is served just like sashimi, but also can be eaten in the form of shabu shabu.

P.S. This method of cooking reminds me a bit of gogi-gui, the famous Korean BBQ! It also made it onto our list of the top 10 keto Korean foods to try.

Japanese Pickles つけもの

Pickles in Japan, (called ‘Tsukemono’) are delicacies enjoyed with many dishes and on many occasions. Tsukemono come in many different types, and are basically any traditionally-pickled vegetable or fruit pickles!

On a keto diet, you’ll want to avoid most fruit pickles such as Umeboshi. It’s okay to enjoy more of the vegetables when fermented though, because bacteria feed off of the starches and carbohydrates, essentially “pre-digesting” them and lowering the levels.

These lower carbohydrate levels make for great keto Japanese food.

A great choice to go for is salt pickles (Shiozuke 塩漬け), which are fermented in a salt brine. Most often people make these pickles with cucumber, carrot, or cabbage, but almost any vegetable will work if you make them yourself! You might also find nukazuke 糠漬け, which are pickled vegetables fermented in rice bran. You’ll also come across some low-carb miso pickles if you’re lucky!

P.S. You can also make your own Tsukemono! I made some easy carrot and daikon pickles in this recipe which is perfect for getting started.

There are other common types of non-fermented pickles in Japan, which are still delicious side dishes. These include soy sauce pickles, vinegar pickles

You can even make them yourself! Hachisu’s popular ‘Preserving the Japanese Way’ is an in-depth traditional recipe book. Grab your own here.

Tamagoyaki 卵焼き

Tamagoyaki is a Japanese-style omelette. To make it, people typically use a square or rectangular dish to fry omelettes which they then roll up to one end, before adding the next layer of eggs and repeating the process 5 to 6 times until they have basically an omelette loaf! Slice into horizontal chunks and you have properly prepared tamagoyaki.

You can season this as you like, but soy sauce is a good option.

As eggs are an important staple of the ketogenic diet, so is this dish an awesome way to prepare them. Tamagoyaki is also great for bento (Japanese lunch boxes).

You could easily pair it with the pickles and mushrooms on this list, for example, and have keto Japanese food for on the go. Japanese meal prep made easy, right?

Use the Right Frying Oil / Fat!

Remember when frying to use a healthy fat! Stick to beneficial fats like grass-fed animal fat, coconut oil, dairy (butter/ghee), olive oil, avocado oil, and almond oil.

Sesame and peanut oil together is a good idea for gentle frying if you’re looking for that “all oriental” flavour.

At all costs, avoid oils high in polyunsaturated fatty acids such as soy, sunflower, safflower, canola, grapeseed, corn, and “vegetable” oil. These contain and form toxic compounds called TRANS fats.

For more information on healthy or harmful fats, there is arguably no better place than Dr. Cate Shanahan (learn more).

Simple Shiitake or Elegant Enoki Mushrooms

Shiitake mushrooms (シイタケ)are a famed health food from Japan, with a rich umami flavour and many proven health benefits. They provide 7g of carbs for every 100g, making them an ideal meal or side dish for those on a low-carb or ketogenic diet.

Powerful components found in shiitake mushrooms, such as Lentinan, exhibit impressive anticancer activities. Researchers from Japan have found Lentinan to be particularly powerful for against gastric cancer (^).

Additionally, one study conducted by American researchers demonstrates myochemicals in shiitake mushrooms to inhibit other types of tumor growth (^).

Low-Carb Shiitake Mushrooms for Ketosis - Growing Naturally On Tree Wood

Enoki mushrooms (えのき)are another type of mushroom from Japan, with a surprisingly elegant appearance. They’re extremely thin – noodle-like, in fact.

In Japan, people like to add this mushroom into soups. Why not try it in miso soup? They provide a light and yet satisfying flavour, making them easily enjoyable.

Enoki mushrooms provide 8g of carbs per 100g. Furthermore, studies show they have demonstrated anticancer, immunomodulatory, heart health-boosting, and anti-neurodegenerative effects (^).

Mushrooms are extremely rich in antioxidants, particularly Ergotheoneine. This unique polysaccharide impresses with a powerful ability to protect the mitochondria in our cells. This prevents aging and can help to protect us from cancer.

Read: Why Are Mushrooms Good for You? Are they MAGIC (wait…)?

A Yoshoku (Western-influenced Japanese food) dish you might like to try as a keto Japanese food is enoki and bacon rolls. You simply wrap these mushrooms in bacon strips and bake in the oven to create deliciously finger food!

Miso Black Cod 味噌ギンダラ

Not actually part of the cod family, black cod (sablefish) is a delicacy fish enjoyed in Japan.

It’s pronounced as “Gindara”, so this is dish “Miso Gindara”.

Mostly, people marinate it in a miso sauce and bake it… To make the sauce, people will typically mix miso, mirin, sake, and sugar. Clearly not a great combination for healthy eating or keto!

However, I stand firm by the rule that anything can be made healthily. Delicious food does not have to come at all from unhealthy sources. Do not lie to your taste buds!

Instead of using sugar, mirin, and sake, how about replacing them with lemon juice, ginger, or plain rice vinegar! This way you can create a marinade for your miso black cod which fits perfectly into this list of keto Japanese food.

Following a natural diet develops your palate to detect the deepest flavours within wholefoods. Milk is sweet, fruits are very sweet, overdone meat lacks that something special, and bitter isn’t always bad. Everyone finds this slightly differently, but it’s an instinctive way of detecting good nutrition.

By limiting carbs, we learn from a low-carb or ketogenic diet not to overindulge on foods like sweet fruits. (Too much provides excess unhealthy sugar in the form of fructose.)

Butajiru / Tonjiru 豚汁

Literally “pork soup”, Butajiru is a hearty pork dish often made with variety of vegetables, and Tonjiru is simply another name. People will sometimes refer to a larger serving as Tonjiru, though.

Pork, shiitake mushrooms and root vegetables like daikon, burdock, or carrots are often paired with a lightening scallion or onion. Those on a ketogenic diet usually limit the intake of starchy vegetables. This is important, so with this soup I recommend you seek alternative ingredients or you have a smaller serving as part of a larger meal!

There is no reason why this delicious dish can’t act as a healthy keto Japanese food.

An excellent way to make this is in a slow cooker! Check out my post to find some great slow cookers to use.

Read: Why to Use a Slow Cooker – Cheap and Healthy

In Conclusion – Japanese Food Can Be Keto-Friendly!

Much like the country and culture, Japanese cuisine is one not to skip out on! If you’re currently following a keto diet, there are plenty of options to choose from that you can enjoy as single serve dishes or alongside other dishes.

Now you can go to that restaurant, finally explore this oriental cuisine, and rest assured. It’s really quite simple to experience Japanese cuisine without all the carbs, after all.

For the true enthusiasts out there, don’t miss out on South Korea’s unique (and delicious) cuisine. Discover the top 10 healthy keto Korean foods here – you won’t regret it, especially if you like Japanese food!

Is there anything I missed out? Let me know in the comments below with your recommendations for this list. If you’d like me to make more posts like this other ethnic cuisines, send a comment my way and I’ll be sure to respond. 🙂

Thank you for reading and coming along on this low-carb journey.

Until next time, stay healthy
James

2 Replies to “Keto Japanese Food – An Easy Guide to Low-Carb Japanese Cuisine”

  • Hi James,

    I have just enjoyed reading your post!
    You are thorough about Japanese foods, and I agree with you 100% that the ingredients of the traditional cuisine are keto-friendly.
    What is very distinctive about Japanese meals is they serve you foods that are in seasons that are more nutritious and delicious rather than the off season’s fruits and vegetables.

    Thank you so much and best regards,
    Lyn

    • Hi Lyn, I’m happy to hear that you enjoyed it!

      I see that you know your way around Japanese food quite well, so it’s great to hear your thoughts. Perhaps I’ll research more into the seasonal foods of Japan – I’m sure there are some wonderful recipe and article ideas to explore and try out. Thank you for sharing with us all!

      Best regards to you, too,
      James

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