Of all the skittish events circumvent Halloween , peer into the pot bowl and noticing that your the skinny has turned brilliant aristocratical might be the scariest . This could be your new realness if you slurp down one of Burger King ’s seasonal Scary Black Cherry slushies , Women ’s Healthpoints out .
The opprobrious - tinted frozen beverage is made from Fanta sal soda , and presumptively , a fair amount of food dye . Ever since its release ahead of the holiday , customers have been sound off that the drink turned their poo “ blackish blue , ” neon blue , green , or purple . alike study turn up in 2015 after Burger King introduced a Whopper with a black bun that had been flavour with A.1 . Steak Sauce . In that slip , customers ’ “ grass green ” bowel apparent movement were blamed on food for thought dyestuff in the bun .
“ To make ninny turn that colouring green , it would require far more dye than is in the distinctive character of A.1 . , " Doctor of the Church and nourishment counselor Pamela Reilly toldUSA Todayat the clip . " My guess is that they ’re using a concentrated variety . "

Although the Scary Black Cherry slushie ’s factor are n’t listed on the firm food chain’swebsite , food for thought dyestuff is likely the culprit — once again — of customers ' colorful poo . Michigan - base gastroenterologist Michael Rice explained toWomen ’s Healththat food for thought dyestuff mixes with the yellow - immature pigments in your gall , which is then eliminate in your poop . Darker dyes in particular , like blue and purple , incline to concede the most visible changes in stool color . Beets , licorice , tomato soup , Kool - Aid , Jell - O , confect , and tinted icing can all have thesame gist .
From a wellness view , there ’s not much to venerate , though . away from giving you a fear after you go number two , the artificial dye that Burger King uses are within FDA - approved point of accumulation . Your poo should go back to its normal chromaticity in no time .
[ h / tWomen ’s Health ]