Fiber mostly, but that's not an addictive, I guess that's a subtractive.

But think about, say, oranges. They naturally have fiber in them to make you feel more full and to slow the absorption of sugar. Then we remove all the fiber by juicing them, and now you can eat 6 oranges in 60 seconds, which is typically impossible or, at least, very uncomfortable.

It's the same story for the entire food industry. Whole foods are complex, we often zone in on some aspect of them and extract it, essentially concentrating it.