
Hunger games in a can.
A lot of jobs these days are sedentary which can result in the dangerous combination of excessive snacking and inadequate exercise. While it’d be nice to have the luxury to eat less and get out more, a lot of people simply can’t while chained to their workstations.
▼ Co-workers aren’t always happy when you sneak in some raw daikon and a glass of port at the desk.
But now the food wizards at Morinaga have developed what they call a “hunger management” product that might help curb the urge to splurge on snacks. It’s called In Tansan and has the unusual property of going down the hatch like a drink and then turning into jelly while inside your stomach, thus making you feel full.
“Tansan” is the Japanese word for “carbonated” because this is sold as a canned carbonated beverage, even though the “In” brand is famous for its line of fortified jelly packets. This drink is specially formulated to react with strong acid, such as that found in the stomach, to solidify into a jelly. In addition, the carbonation bubbles still in the drink get locked inside the jelly, making it that much more bulky.
▼ Promotional video for In Tansan
In Tansan comes in lemon and grapefruit flavors, with the latter having zero calories. The lemon flavor is also low in calories with the use of Palatinose as a sweetener. Both drinks are caffeine-free and contain GABA as a stress reliever to help further reduce cravings for snacks while under pressure.
Reaction from online comments has been overwhelmingly positive, with everyone looking for an easy way to stave off hunger without actually eating something.
“Huh, I think I’ll buy some.”
“Wow, I can’t believe there’s such a convenient food like that.”
“So, what would happen if I drank a whole bunch of them?”
“Can I prevent myself from getting drunk by drinking this first?”
“I’m really curious about this. It’s low in calories and fills you up?”
“Seems like it’d be a good replacement for an energy drink when you’re hungry rather than tired.”
“I’m on a diet so this would be helpful. I’m going to look for it.”
This isn’t just a lot of hot air either. I was hoping to buy some and try it out for this article but since its release on 4 June, it’s been selling out almost instantly every time it pops up on Amazon Japan, which is the only place to get it for now. People really are clamoring to get this stuff.
The only other option is to get a job at Morinaga headquarters in Tokyo where they offer In Tansan to help improve the work environment there. That might take a little longer than getting it on Amazon, though.
Source: Morinaga, Amazon/Morinaga, Hachima Kiko
Featured image: Morinaga
Insert image: ©SoraNews24
● Want to hear about SoraNews24’s latest articles as soon as they’re published? Follow us on Facebook and Twitter!


Fighting mild hunger with a Japanese soda that turns into jelly in the stomach【Taste test】
Japan now has drinkable gamer fuel gelatin, so let’s see if it can power us up【Taste test】
Japanese gamer supplement drink gets sequel with in Jelly Game Booster Ver. 2.0
Japan’s first fall color forecast for 2026 is here!
Starbucks Japan reveals new Tsukimi Moon-Viewing drinkware and gifts for autumn 2026
A real-world Pokémon Poké Ball hotel is opening in Japan at a still-secret location [Video]
Japan’s revolving sushi restaurant king Sushiro coming to U.S. this fall with high prices, no tipping
The mystery of Port Store, the Japanese convenience store that looks like a Lawson rip-off
Tamagotchi evolves into a ring for its 30th anniversary, preorders now open
Elderly couple donates 400 million yen to erect Myaku-Myaku statue in Osaka
Japan Railways announces unlimited-ride train pass for fall travel
Mini CRT-lookalike Final Fantasy figurines are awesome pixel art music boxes [Video]
American tourist in Japan arrested on charges of attempted murder and arson
Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Studio Ghibli unveils new anime calendars and diary planners for 2027
Solo travel in Japan: Hidden beer garden in Tokyo is a haven for single visitors
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
Farewell Final Ceremony announced for Tokyo’s life-size Gundam statue, will stream live
Family Mart releases new Human Made Cup Noodle in Japan, with freebies for Nigo fans
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
One Piece Day 2026 brings new art, music, and new cast announcements
Hikaru Utada sings new song in Shinkansen commercial for Japan’s Supreme Class cabins
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
7-year-old boy left behind on Mt. Fuji by his own dad
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
Pokémon Center Online designates first Pokémon items that will require Japanese ID card to buy
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】