Calorie Mate: Japan’s Tasty Meal Supplement and a Hiker’s Best Friend

When many people start thinking about meal replacements, the images of space travel and astronauts are perhaps what first comes to mind. Japan, however, is already living with Calorie Mate, a widely popular food block that contains enough nutrient content to sufficiently replace the equivalent of one solid meal. But what does Calorie Mate taste like, and what even is the intended purpose of this futuristic Japanese snack? To find out, let’s take a deeper dive into the origins of the Calorie Mate to help us understand why Calorie Mate came into existence from the beginning.

Check out our writers’ top Japan travel ideas!

This post may contain affiliate links. If you buy through them, we may earn a commission at no additional cost to you.

History of the Calorie Mate

The story of Calorie Mate started with a simple question: "What is health?" A Japanese researcher pondered this question as he attempted to come up with an idea for a revolutionary new product that would improve the overall well-being and health of others. As he visited local hospitals to conduct research, he encountered a young patient who, although cured of their illness, was still struggling to recover completely as he could not eat properly and was still reliant on an IV drip.

From there, the researcher's goal became to make a supplement that recovering patients could ingest to help wean them off of their IV. For clues on how to make such a product, the researcher turned his attention to the stars as the race to be the first man on the moon was raging at the time. Inspired by the space-saving and nutrient-rich space food that astronauts were set to bring on their manned mission to the moon, Calorie Mate's development team applied these same principles to their product and went into development.

The first product that the group put on the market was called "Hinex-R" and was a nutritional powder meant for oral consumption. While this was effective as a medical supplement, the product was slow to catch on simply because people just didn't enjoy eating raw powder. The problem was that although they had mastered the nutritious element of the product, they had yet to make something that consumers genuinely enjoyed eating. So after four years, it was back to the drawing board to create a new product that people could genuinely enjoy.

Eventually, the development team got the idea of making the product a more solid bar, similar to a cookie or biscuit, to be easier and more enjoyable to consume. Finally, after six more years of research and testing, Calorie Mate hit Japanese shelves back in 1983 and has been produced by Otsuka Pharmaceutical Co. ever since.

What Does Calorie Mate Taste Like?

Calorie Mate has a simple, pleasant taste that can be roughly compared to shortbread cookies. It has a nice sweetness to it and a crumbly texture, but after you take a bite, you'll want some water or a drink on hand as it is quite dry. In terms of ingredients, flour, margarine, sugar, assorted vitamins, and some additional flavor agents are the backbone of the Calorie Mate. When it comes to flavor, while it's nothing too fancy, it will keep you very full for an extended period of time which is the intended purpose.

At the time of its debut in 1973, Calorie Mate only came in its original cheese flavor, but the following year a fruit flavor became available in stores. Seeing rising sales and a surge in popularity, a chocolate flavor was introduced in 1993, a maple flavor in 2009, and most recently, a plain flavor in 2014. 

In addition to the original Calorie Mate block, Calorie Mate is also sold as a Jelly and in a canned liquid form. The Flavors for the jelly are apple, fruity milk, lime &grapefruit, and 100kcal. And the flavors for the canned drink version are corn soup, café au lait, coffee, cocoa, fruit mix, and yogurt.

Why Do People Eat Calorie Mate?

While the original focus of the Calorie Mate was centered around health, today, a diverse spread of people enjoy and use Calorie Mate for a number of things. Some people use it as a true meal supplement for when they are simply out of time or need to work late at the office. Other people use it as a filler to tie you over between meals. It is also commonly stocked as an emergency food in case of a natural disaster, of which Japan has plenty.

However, one of the most popular uses of Calorie Mate is for hiking due to its compact and light nature. Similar to how the inspiration for the Calorie Mate was drawn from the food being used in space travel, since Calorie Mate takes up very little space and is very calorie-dense, many hikers have turned to using Calorie Mate as their preferred snack when hiking. Calorie Mate is especially prized by backpackers making long treks across rugged mountains for many days but need to minimize the weight of their bags.

Check out our writers’ top Japan travel ideas!

Where to buy Calorie Mate

Due to its popularity in Japan, Calorie Mate is sold nationwide at virtually every supermarket, convenience store, and drug store. At the foot of many mountains, it is not uncommon to find Calorie Mate being sold at gift stores or mountain visitor centers as well.

Another place that one can find Calorie Mate would be in vending machines such as the ones in train stations. While typically only drinks are sold from Japanese vending machines and not food, more often than not, Calorie Mate appears to be the one exception.

Klook.com

Appearances in Pop Culture

Calorie Mate’s popularity has seeped its way into Japanese pop culture as well, making several notable appearances in anime, manga, and video games. In the 1995 Studio Ghibli classic Whisper of the Heart, the main character, Suzuki, is seen eating an unbranded stick of Calorie Mate as she feverishly writes her novel. In Full Metal Panic!, a parodied version of Calorie Mate known as “CalorieMark” is the favorite food of character Sagara Sousuke.

In video games, Calorie Mate makes appearances in popular titles such as Metal Gear Solid, EarthBound, and Disaster Report 3. And if reading manga is more your style, Calorie Mate has been seen to grace the pages of popular manga such as K-Days of Blue, Ping Pong, and Wild Adapter. 

Give Calorie Mate a Try Next Time You're On the Go in Japan!

Calorie Mate has found its place in Japanese food culture as a versatile snack that can be enjoyed in a huge variety of situations. While you're traveling around Japan, be sure to pick up a box to have on hand in case you need a filling snack to tide you over between meals. And if you're wondering what to wash it down with, check out our article on 25 Must-Try Japanese Drinks!

If you want to give feedback on any of our articles, you have an idea that you'd really like to see come to life, or you just have a question on Japan, hit us up on our FacebookTwitter, or Instagram!

The information in this article is accurate at the time of publication.

tsunagu Japan Newsletter

Subscribe to our free newsletter and we'll show you the best Japan has to offer!

Subscribe Now!
Get your Japan discounts here!

About the author

Alexander
Alexander Litz
Having moved to rural Yamagata Prefecture after junior high school, Alexander bounced around Tokyo, Seoul, and Taipei until he eventually returned to Yamagata, where he carved out a career as a travel writer and tourism professional. A serial traveler, feverous nature enthusiast, and advocate for adventure, Alexander has explored over 40 countries and all 47 prefectures of Japan. He has made it his life’s work to bring sustainable tourism to rural areas in order to promote, protect, and preserve local culture, traditions, and ways of life.
  • Check out our writers’ top Japan travel ideas!

Restaurant Search

Sign up to our free newsletter to discover the best Japan has to offer.