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Burger King's black Halloween Whopper has an unexpected side-effect

The Halloween special has proven popular among fans

Tuesday 06 October 2015 12:07 BST

The King unveiled the black burger last week (PAUL J. RICHARDS/AFP/Getty Images)

People who eat Burger King's special black Halloween Whopper have reported a disturbing side-effect.

It turns your poo green.

The Halloween burger, which was launched last week, has proven popular among fans - although many newfound aficionados have voiced their concerns:

Others thought the promotional stunt might be more appropriate for St Patrick's Day:

The alternative burgers

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The alternative burgers

Black 'Kuro' burger

Burger King Japan took weird burger mutations to new heights/lows, announcing a Premium Kuro Burger (kuro means "black") with black buns and cheese coloured with bamboo charcoal and squid ink ketchup.

Burger King

The alternative burgers

Red burger

Burger King is now serving up red cheeseburgers in Japan. The Aka Burger ("aka" means "red") comes in two varieties - Samurai Beef and Samurai Chicken, both making use of red cheese and red buns. Tomato powder was added to give the ingredients their angry colour, with the burgers also coming with a red hot sauce made from miso and hot pepper.

The alternative burgers

‘The Glamburger’

A restaurant in Chelsea has found a not-so-novel way to celebrate excess: by claiming to have created the world’s most expensive burger, embellished with gold leaf, lobster and caviar. Priced at £1,100 (or £1237.50 with service), the burger took three weeks to develop and has been verified by Record Setter as the highest priced in the world.

PA/Groupon

The alternative burgers

Doughnut burger

Why use buns when you have doughnuts? You can find these calorific sweet/savoury delights in America, also known as the 'Luther Burger'.

The alternative burgers

Ramen burger

Fried ramen noodles replace the traditional bun here, which, when introduced at a Brooklyn food market, sold out in hours.

The alternative burgers

Pizza burger

Bringing two of our favourite fast foods together, this burger is cooked inside a pizza, and packs a massive 1,360 calories.

The alternative burgers

Lasagna burger

This invention from Philadelphia’s PYT sees deep-fried lasagna replace the buns.

The alternative burgers

Holy cow

This special Father's Day dish from Reds True Barbecue in America contained 17 types of beef.

The alternative burgers

The Impossible Cheeseburger (Veggie burger)

Don't want to eat meat but enjoy the taste of seared carcass? The Impossible Cheeseburger might be the cheeseburger for you, using plants to make "the best meats and cheeses you’ll ever eat."

Impossible Burger

The alternative burgers

The 'Zinger Double Down King' burger

KFC's new meat beast burger is a bun-less creation with fried chicken acting as buns, released only in Korea so far.

KFC

Burger King is yet to release a statement.

Pope stops off at Burger King

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