Mizuki Nakano says he is the next step in human evolution.
In September of 2009, Mizuki Nakano decided that it would be an interesting experiment to try and eat nothing but fruit all day, every day. Conventional wisdom would dictate that eating nothing but fruit would be bad for one’s health given the high sugar content and lack of other nutrients. But Nakano noticed that there was no scientific evidence to back up these beliefs.
So, he set out on gradually converting his diet to the point where he would eat only fruit. He wouldn’t even drink straight water, opting instead to get hydrated from the juices of his sole form of nourishment.
However, days turned to weeks and weeks to years, and Nakano’s little experiment evolved into a full-fledged fruity lifestyle. His eccentric diet eventually landed him on the popular variety show Matsuko’s Unknown World, where he gained national notoriety.
Following this appearance, rumors on the internet began to swirl that Nakano had died, finally succumbing to the malnourishment that a seedy habit like his would supposedly create. However, three years later on 17 April, 2018, Nakano made his triumphant return to the same show, not only to dispel rumors that he had died, but to make a startling revelation.
After brushing aside concerns from host Matsuko Deluxe that he looked a little jaundiced and might be suffering from liver damage, Nakano said that not only has his diet sustained him all these years, but he claimed that it had made him the next step in human evolution.
According to researchers who Nakano says studied him, the complete lack of protein combined with a pure fruit diet have caused certain fungi to grow in his intestines that can convert nitrogen in the air to protein. He says the researchers told him that this is completely unique to Nakano’s body and that he is unlike any other human.
Matsuko responded by saying, “Gross.”
It’s truly a remarkable story, and one that can’t help but stir up wonder and disbelief, as comments show.
“He’s superman?!”
“Prof. Nakano is alive! I was really worried there.”
“Wha?! I don’t believe it!”
“That is a superior body if it can produce protein from thin air.”
“I don’t know if this is good or bad.”
“I guess it makes sense. You are what you eat.”
“I wonder if that’s why gorillas are so huge…”
Nakano’s claim appears to be purely anecdotal, however, and I could not find any peer-reviewed (or non-peer-reviewed for that matter) report of this study that was done on him. However, as Nakano originally noticed back in 2009, there doesn’t seem to be any study that covered the effects of an all-fruit diet at all, so this is uncharted waters.
On the other hand, a quick Google search for “protein deficiency” brings up all kinds of chilling dangers, from the swollen bellies you see in children of developing countries to something that looks like the dragon disease that guy from Game of Thrones got.
It’s not something to take lightly, so until there’s some hard evidence that Mizuki Nakano has evolved into a next-level human, I’d advise against adopting an all-fruit diet. However, if you are looking for some great fruit-centric recipes, he’s definitely a reliable source for those.
In the spirit of exploration, I would try it myself…but living in the land of Sushi Kit-Kats and all-you-can-eat sandwiches, I cannot in good conscience pass those things up.
Source: Narinari.com, Hachima Kiko, Ameblo/fruit_mizuki
Featured image: Twitter/@mizuki_nakano

Will P.K. do it this time? One middle-aged man’s genuine attempt at a low-carb diet
Manga legend Shigeru Mizuki’s longevity seems to come from lots of burgers and desserts
Tokyo has a BLUE sushi restaurant with all-you-can-eat BLUE sushi for just 400 yen (US$3.50)
Tokyo’s life-size Gundam anime mecha statue will be removed this summer
Hundreds of rose bushes in bloom at Tokyo’s off-the-beaten-path, next-to-the-tracks flower street
Ichiraku Ramen-inspired ramen sets from Naruto anime pay homage to Naruto, Sasuke, and Sakura
Studio Ghibli’s president is leaving the company. Will it change how they make anime?
Let’s hike a Japanese mountain (that isn’t Mt. Fuji) – Mt. Tsukuba[Photos]
The top 12 incomprehensible school rules, as chosen by high school students
Baskin-Robbins Japan’s 2026 popularity poll results are in and the champion flavor is crowned
161-year-old Kyoto confectionary maker releases new edible Pokémon lineup
7-Eleven Japan now sells canned water, but does funky packaging mean funky flavor?[Taste test]
Choc mint ice cream season hits Japan with a spectacular drinkable ice cream from Tully’s
Starbucks Japan releases two new “chunky” drinks… and matching gel designs for our nails
7-Eleven Japan now has ramen machines…but only at 41 stores
Mt. Fuji hot spring inn gets even more beautiful after dark with Firefly Festival
7-Eleven Japan is releasing Greedy chocolate chip and whipped cream sandwiches
Don’t miss the Tokyo Tower City Light Fantasia ~Summer Landscape 2026~ event during your travels
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
Brand-new Pokémon manhole covers coming to help the recovery of a disaster-stricken part of Japan
Japan’s awesomely beautiful Alpen Route snow corridor is now open
Japan’s new Pokémon jackets give you the look and powers of the Kanto starter trio
Move aside, convenience store egg sando – there’s a better version of the iconic sandwich in Japan
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