An American YouTuber who visited Tokyo was flabbergasted by one of the menu items at a Burger King in the Japanese capital.

Will Sonbuchner, creator and host of the Best Ever Food Show channel, popped into a branch to try the chain's Ninniku Garlic One Pounder, a burger which includes four patties stacked up on top of each other.

Sonbuchner detailed his experience of unwrapping the monster burger, exclaiming, "holy cow," as he pulled the wrapping away to reveal the sheer scale of it.

But it's safe to say he wasn't exactly impressed by its presentation, adding: "What an absolute disgusting mess."

The content creator took the bun off to look at the ingredients, complaining about the "orange, garlicky sauce all over the place".

He then attempted to tuck into the imposing quadruple-decker, straining to take a bite and groaning, "There's so much meat".

Nonplussed, the YouTuber asked: "In a country known for precision and excellence, who is your demographic [for this] except huge Americans that rolled their way all the way to this country?"

Burger King has been approached for comment.

Fast-food chain menus vary around the world, with tweaks made to accommodate for local traditions and tastes.