Haha, gross!

Back in the day, you could genuinely buy a tapeworm for weight-loss purposes.

The idea behind this was simple: You want to lose weight, but not eating sucks. Therefore, this little bug will just live in your intestines and eat all your food for you. Sounds great, right?

Well, no. Not at all. Eating a tapeworm can not only kill you, but it doesn’t even always cause you to lose weight! What the hell!

Plus, if you leave a parasite in your stomach it can continue to grow and, in some cases, need to be surgically removed. In case you really want to know what that looks like, well, look no further!

Doctors remove parasites out of patients intestines during surgery
byu/Alligator-creep inCrazyFuckingVideos