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Featured Image Credit: Jam Press/@DrYoun
Take a look at the doctor's warning below:
A video of the man eating a raw egg with chopped up - you guessed it - raw liver for breakfast made the rounds online, leading to some stunned reactions from medical professionals.
Surgeon and social media personality Dr Anthony Youn responded with a video of his own, explaining exactly why the diet of the Liver King - real name is Brian Johnson - could be so problematic... not to mention repulsive!
Johnson claims to live on a diet of just raw liver, testicles and bone marrow, as part of his 'ancestral lifestyle' - which supposedly pays homage to the eating habits of primordial humans.
This diet, he claims in one TikTok video, allows him to supposedly maintain 'optimum health'.
Dr Youn is quick to dismiss these claims, however.
In his filmed response to the breakfast video, Dr Youn appears visibly repulsed by the Liver King's declaration: “Who needs vegetables, when you can eat testicles?"
Addressing his own followers, the visibly rattled surgeon ponders: "How does he poop? There's seriously no fibre in any of this food and I have friends who eat no vegetables and I swear they sit on the can for an hour."
“I would have to stick my hand up my butt and pull out literal boulders", before adding that he’d rather be known as 'Green Smoothie King' to avoid such bowel complications.
Dr Youn's reply has gained over 620,000 views and 867,000 likes on TikTok at the time of writing, with several other medical professionals also raising concerns over the extreme diet.
Plenty of people had their say in the comments, with one user suggesting: "Maybe it’s why he is angry all the time, he is quite literally full of it", while another shuddered, “This cannot be good for anyone.”
However, not all the replies were hostile to the raw meat diet, with one person claiming that it actually helped them: “I do the carnivore diet and have no issues with going to the bathroom ever.”
Despite experts criticising Johnson, and rightfully so, there is clearly a fascination with this modern day caveman.
Johnson has 2.5 million followers on TikTok, and over 1.5 million on Instagram alone. He also owns a supplement company, and most recently, had to swat away accusations from podcaster Joe Rogan that he takes steroids.
“I don’t touch the stuff,” the 44-year-old told GQ this week, adding that he’s 'grateful to Joe Rogan for bringing me into his ecosystem' and that he’d love to go on the podcast one day.