Food·Posted on Oct 5, 2015People Who Ate Burger King's Black Whopper Said It Turned Their Poop GreenIf you eat a Whopper, your poo may be going as an emerald this Halloween.by Rachel ZarrellBuzzFeed News ReporterLinkFacebookPinterestTwitterMail In honor of Halloween, Burger King has finally brought its black-bunned Whopper to the United States, calling it the Halloween Whopper. Somewhat surprisingly, Burger King patrons have said the burger actually looks pretty close to the ads for it. Grub Street @grubstreet #BurgerKing’s black Halloween Whopper actually doesn’t look so bad in real life: http://t.co/T9qR7ON0Gn 02:54 PM - 28 Sep 2015 Reply Retweet Favorite But more surprisingly, the burger seems to come out the other end a bit of a different color. Daniel Rodriguez @Danny_Seth Yesterday I had the Halloween Whopper... Today my poop is green. Yesterday was the last time I'll have the Halloween Whopper. 03:15 PM - 04 Oct 2015 Reply Retweet Favorite Quite a lot of people have experienced green poop after eating the burgers! Toasty @ImHunterStanton Took like three days for my poop to stop being green, but was totally worth it, @BurgerKing 03:10 PM - 05 Oct 2015 Reply Retweet Favorite Smokey Martling @SmokeyMartling Dear @BurgerKing, yesterday I ate a Halloween whopper and now the color of my poop is blue green. Where my brown poo? 03:17 PM - 03 Oct 2015 Reply Retweet Favorite Chel$ey @cheIseyyysmile thanks for the green poop @BurgerKing 06:15 PM - 01 Oct 2015 Reply Retweet Favorite miss new booty @simplypeachy__ I ate a Halloween whopper just to see if my poop turned green and it DID 10:43 PM - 03 Oct 2015 Reply Retweet Favorite It's apparently QUITE green. BootnyLeeFarnsworth @PopStarWill Yo @BurgerKing your Halloween Whopper turned my poop SUUUUPER green! It was bomb tho. 10:15 AM - 30 Sep 2015 Reply Retweet Favorite CRU$T DAD @johnkritzman Incase anyone wanted to know, the Halloween Whopper turns your poop green. And not even sickly green. Like cartoon green. Comical green. 01:10 PM - 30 Sep 2015 Reply Retweet Favorite IT LOOKS LIKE LEPRECHAUN POOP. (Warning: This is a picture of actual green poop). Tap to reveal Click to reveal Eughhh... Tap to reveal Click to reveal There's even a #GreenPoop hashtag!!! Ryan Skeltis @RagingSkittlez #HalloweenWhopper #GreenPoop is a real thing. Don't get to scared after eating it like I did. 09:22 PM - 04 Oct 2015 Reply Retweet Favorite Toby Marks @Tobyblog You think @BurgerKing will bring back the #greenpoop for St. Patrick's Day? 03:48 PM - 04 Oct 2015 Reply Retweet Favorite So if you're going to venture to Burger King for their Halloween burger...maybe proceed with caution. Captain Insaneo @AbateadamAdam Public service anouncment! Do not eat the new Burger King Halloween Whopper. It will turn your poop green. Other than that....pretty good. 06:36 PM - 01 Oct 2015 Reply Retweet Favorite BuzzFeed has reached out to Burger King for comment about the Whopper's strangely colorful side effect. I Went To Japan To Eat The Black Burgers From McDonald’s And Burger King And Here’s What I Discovered buzzfeed.com You Can Now Buy Gothic Burgers With Black Buns In Japan buzzfeed.com How Green is Your Poop? buzzfeed.com