Don't say we didn't warn you.

People got really excited when Peeps Oreos were announced, but to us it sounded like a bad idea. Turns out, we were right.

The artificially flavored and colored cookies are causing some...unsightly side effects for consumers.

"My roommate ate a whole pack of Oreo Peeps and left a pink stain in the toilet," claims one Twitter user.

"My spit looks like Pepto-Bismol," said another, hours after eating the cookies.

"This is the type of food dye where an hour later, when I went to brush my teeth, IT TURNED MY TOOTHBRUSH PINK," said an online food reviewer.

Yes, the Easter treats are turning people's mouths and bowel movements hot pink.

The cookies use bright pink dye (Red Number 3) which if consumed in enough amounts will, in fact, go right through your system and into your toilet. But it really can't hurt you.

"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," Kimberly Fontes, the senior communications manager of MondelÄ“z International, said.

But that doesn't mean people are happy about it. We've all heard about a blue tongue for about an hour after a blue drink...but this is lasting days.

It's unclear how many cookies you need to eat for these side effects to kick in, but it's less than an entire package.

Charmin isn't wasting any opportunity with this, either.

Have you tried these Peeps Oreos? Has this happened to you? Let us know!