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
Kanji ice cream becomes a sell-out hit in Japan
Japan has a new cute and clever sunblock for cat lovers
Suspected yakuza member arrested for having frequent flyer mile account
This Tokyo Station sweets sensation sells out daily, but we finally got our hands on it
You’ll never win cash or prizes or cash at this Tokyo pachinko parlor, and that’s why it’s so cool
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Studio Ghibli adds mini pillows and massive mats to its anime merchandise store in Japan
McDonald’s Japan’s new Chiikawa Happy Meal figures are here![Photos]
Mister Donut’s beyond super soft and chewy beyond mochi mochi donuts have returned
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches
7-Eleven Japan now has ramen machines…but only at 41 stores
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
Japan’s 5.3 million beautiful Hitachi Nemophila flowers are now in full bloom[Photos]
The average age of Japan’s hikikomori shut-ins is getting older, survey shows
Japan enters Golden Week vacation period, survey shows one in three plan to ride it out at home
New Kyoto Converse sneakers celebrate Japan with traditional kimono fabrics for your feet
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Japan now has gyoza doughnuts, and they taste like no other doughnut we’ve tried before
Studio Ghibli launches huge new anime movie T-shirt collection with special design details
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
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
Japan reportedly adding Japanese language skill requirement to most common foreigner work visa
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
McDonald’s and Gundam team up for customized anime mecha and fried chicken sandwiches[Video]
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】