There’s something quite wonderful about the humble french fry. That combination of starch and grease, the crunchy outside and fluffy inside; it stimulates something deep in our reptile brains to create a tuber-induced euphoria. We could easily plow into and finish a new Mega Potato in one sitting; that’s child’s play. But there must be some upper limit to the amount of golden, crisp french fries one single human being can eat at one time, right? Right?!
It’s a question we felt morally obligated to answer. After all, the addictive qualities of these delicious little slices of heaven could, in fact, cause someone to literally eat until they fall over dead from potato poisoning. For the public good, we had to investigate.
Well, not us. We’re far too delicate for dangerous work like that. So, we found a 100 lb Japanese woman to take the challenge for us!
In the name of science, we knew we had to lay out some ground rules: The large-size boxes would serve as our standard metric, there would be a two hour time limit, our subject would be required to consume the fries at the restaurant, and because we were literally paying her only in french fries, we decided to let her spice things up with whatever sauce McDonald’s keeps on hand if she got bored of the plain salted spuds. It was the least we could do for literally putting this poor woman’s life at risk.
At the end of the two hours, our petite subject had downed eight large boxes of McDonald’s fries, or approximately 4,568 calories worth. She tells us she could have gone for 10, but when we saw her wild addict’s eyes and a slight shake in her hands, we knew she was on the verge of overdose and restrained her. “You’ve had enough,” we whispered, “You’ve had enough…”
So, there you have it. The maximum human limit of french fry consumption is eight large boxes per 100 pounds of bodyweight. You can use whatever math equation to extrapolate what your limit would be and leave it in the comments. We’re all scienced out for one day.
Photo evidence of our investigation (with video following the pics):
[ Read in Japanese ]












Can you use McDonald’s French fries to make Japanese-style croquettes?【SoraKitchen】
McDonald’s announces end of French fry rationing in Japan
How to turn cold McDonald’s fries into the best hash browns you’ve ever tasted
McDonald’s adding new French fry flavor just for Japan based on nostalgic student snack
Sayonara, spuds! McDonald’s Japan halts sales of medium and large orders of French fries
10 times to avoid traveling in Japan in 2026
Ramen restaurant’s English menu prices are nearly double its Japanese ones, denies discriminating
This quiet forest cafe in Japan lets you read all day in the house of a famous author
We ate sushi made from Japan’s most expensive tuna ever【Taste test】
Here’s what our bachelor writers ate over the New Year’s holiday in Japan
Japanese beef bowl chain Sukiya’s 2026 Smile Box lucky bag basically pays for itself
The Purple Lucky Bag from Village Vanguard is an extra-large waste of money
Family Mart makes new anti-food-waste stickers, free for other stores and restaurants to use too
Forget dog-earing and bookmarks that fall, make your own easy origami bookmark instead!
Senkoji: The Japanese temple that’s more like a theme park to heaven and hell
Starbucks Japan ready to get Year of the Horse started with adorable drinkware and plushies【Pics】
Hayao Miyazaki says Happy New Year to Studio Ghibli fans with new art for Year of the Horse
Cup Noodle tries an authentic Jiro-style ramen, but something’s not quite right
Top Japanese cosplayer Enako returns to Comiket after 6 years, creates mayhem with admirers
The best Starbucks Japan Frappuccinos we want to drink again in 2026
We revisited Sweets Paradise after a decade to see if Japan’s dessert buffet still delivers
That time Seiji called JASRAC to ask why he didn’t get paid royalties for his song being on TV
Pizza Hut Japan’s hot lucky bags are perfect for a New Year’s pizza party
Majority of Japanese mayors say foreign residents are essential but most see good and bad effects
7-Eleven Japan starts new temporary luggage storage service in over 300 branches
Disillusionment at Tsukiji’s tourist-target prices led us to a great ramen restaurant in Tokyo
Starbucks teams up with 166-year-old Kyoto doll maker for Year of the Horse decorations【Photos】
Tokyo considering law requiring more trash cans following litter increase in heavily touristed area
Tokyo’s Tsukiji sushi neighborhood asks tour groups to stay away for the rest of the month
Tokyo event lets you travel back in time, for free, to celebrate 100 years since Showa era start
Japan may add Japanese language proficiency, lifestyle classes to permanent foreign resident requirements
Sanrio theme park in Japan announces plans to expand into a Sanrio resort
Lacquerware supplier to emperor of Japan and Pokémon team up for new tableware
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Japan’s deadliest food claims more victims, but why do people keep eating it for New Year’s?
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Starbucks Japan reveals new sakura drinkware collection, inspired by evening cherry blossoms
Updated cherry blossom forecast shows extra-long sakura season for Japan this year
As McDonald’s Japan restricts French fry sales, rival boosts its fry sizes by 25 percent, for free
McDonald’s Japan reminds everyone that French fries are vegetables to celebrate Vegetable Day
Brace yourself – McDonald’s Japan about to start selling chocolate French fries
McDonald’s Japan goes beyond chicken by adding shrimp nuggets to menu
McDonald’s Japan’s Fuwatoro Tamago Noko Demi Gurakoro burger is a mouthful in more ways than one
Kids in Korea Order $250 in French Fries, Piss Off Everyone at McDonald’s and on the Internet
China McDonald’s Finally Brings Curly Fries to The Asian Masses
McDonald’s Japan adds purple shakes to their menu, but they’re not grape-flavored
Hash browns disappear from McDonald’s Japan branches as country’s potato shortage continues
McDonald’s Japan ends heartwarming nothing-special anime ad series with two last videos
McDonald’s Japan is adding another spooky flavor to their Halloween Choco french fry lineup
McDonald’s Japan adds deep-fried cheese cutlet sandwiches to its menu
Anime McDonald’s looks like an awesome place to work part-time 【Video】
McDonald’s Japan asks that you please be careful with its new extra-spicy rice burger
McDonald’s Japan made two almost identical commercials, with one tiny, touching difference【Vids】
Leave a Reply