An Oreo spokeswoman sent this statement to The Huffington Post explaining what happens from eating the Peeps Oreos.
The Oreo Peep limited-edition sandwich cookies contain a bright pink food coloring, FD&C Red Number 3. We use this ingredient in the product consistent with U.S. Food and Drug Administration (FDA) regulations.
Certain foods can temporarily color the tongue and inside of the mouth. This is common with brightly colored products such as ice pops, gelatins and drink mixes, as well as with certain fruits and vegetables, including beets and cranberries. Such foods can also temporarily color stool.
YES! That means you can get PINK POOP from eating these.
Check out some of these Tweets from people that have already experienced this!
This is our favorite:
This guy wasn't sure if this was supposed to happen: