A Korean YouTuber who consumes astronomical amounts of food in one sitting shocked the internet as soon as he took off his shirt.

That’s because BANZZ, another popular mukbang star, is ripped AF.

Just look at those abs!

Anyone who is familiar with how mukbang works is easily shocked, but longtime fans are probably aware about his secret to fitness.

A post shared by 정만수🇰🇷 (@eodyd188) on Feb 15, 2017 at 3:18am PST

BANZZ reportedly works out several hours each day, according to Koreaboo.

Within this period, he spends up to five hours on aerobics and about two hours on weightlifting, among other exercises.

A post shared by 정만수🇰🇷 (@eodyd188) on Jul 11, 2017 at 9:36pm PDT

Despite all the eating, he reportedly maintains an ideal weight of 70 kilograms (154 pounds). He is also 5′ 8″ tall.

See, those abs aren’t lying!

BANZZ uploads mukbang videos almost everyday, though, so whatever is going on inside his body remains a mystery to most of us.

Watch him eat below: