the sugar is the same in any case, but fiber may reduce how harmful it is, or at least slow down how fast you shove it in your face.

The point you make is an important distinction. It's really effortless to put down 44oz of soda but very hard to eat the sugar equivalent of ~6lbs of carrots (even if you are juicing them 6lbs is a lot of carrot juice).

http://www.sugarstacks.com/carrots.htm

There's an age at which drinking a sugary soda becomes difficult...

Related, it was recently discovered that there is a limit to how much sugar you can (comfortably) consume, unless you are a child. In children there is no limit.

Citation/link, please?

It was a while ago. I remember reading it on reddit, so I googled "no limit sugar children reddit", this is it!

https://www.npr.org/sections/thesalt/2011/09/26/140753048/ki...

“Sugar” is a broad category of chemical compounds, each of which is metabolized differently. Even if they all had the same caloric density (which they don’t), that would give you a woefully incomplete picture of their effect on your health.

Vegetables contains much less sugar then fruits. You can get enough calories if you eat fruits alone, but you can't get all calories you need from vegetables alone.

If you don't finish off that calorie budget with some protein and fat, you're in trouble.

Vegetables contain protein.