green

Gizmodo found out why Burger King's black burger turns your poop green.
Via: Gizmodo
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As October's shadow loomed long on September, we knew Burger King would bring a black-bunned burger to celebrate the creepy season.

What we didn't know is that eating the thing would turn your poop a vibrant, verdant, lustrous green. Careful there, that link shows actual human waste.

Furthermore, we didn't know why. We only had to hold ourselves against the dark ignorance that blanketed us.

People had lots of speculation, from A-1 sauce to demonic leprechauns, but it was Gizmodo that ultimately revealed the truth.



But while the poop is indisputably green, the dye causing it might not be. The dyes that make the bun black are a combination of Yellow #6, Red #40, Caramel Color, and Blue #1. Blue #1 is also known as Brilliant Blue FCF. Brilliant Blue doesn't absorb well in the intestines, so it often comes out in the poop—it just doesn't come out blue. The internet is full of concerned parents talking about giving their kids a purple drink or smoothie (made with red and blue food coloring) only to change green diapers or find green stains on underwear. Brilliant blue is often combined with tartrazine, a yellow food dye, to make green dye. A site called The Poop Report claims that blue food dye (Blue #5 this time) combines with bile to make poop green, although bile by itself can turn poop green.

In the end, the green product of the black burger is probably the result of blue food coloring. The good news is that it's coming out of you because it's not getting absorbed into your body.



Now we can sleep soundly and try to eat stuff that's not cosmetically dyed to celebrate a time of year.

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