system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why do the Haribo Sugarless Gummy Bears cause issues?

I came across the reviews of the Haribo Sugarless Gummy Bears and find it hard to believe that they do that. Why do our bodies react that way to the gummy bears?
gpt
In these bears is a chemical called Maltitol. Maltitol is a plant sugar altered in a lab to be less digestible. This means it doesn't hurt your teeth and takes longer to release it's sugar content into your system, making it safer for diabetics. Win win!

Except, because it doesn't digest quickly, it spends a lot more time sitting in your stomach and intestines than normal sugar. This causes osmosis to take place and your body begins to release water into your digestive track. 

So, your belly full of sugarfree gummy bears has become a liquid soup of sugar water and whatever else you've eaten in your bowels. And things in your bowels like to come out. Normally, the osmosis works the other way, drying out your feces so as to reduce water loss, but in this case, no such thing happens and the soupy poop water heads for your hole with the wild abandon of the Colorado river.