Cellulose fiber in food?

[Pi1otguy]

I have a silly habit of reading ingredients on most foods I eat. I've noticed "cellulose fiber" in certain foods that traditionally have lots of flour and of course carbs. More specifically, I see it in low calorie (25-33% less kCal) or lower carb breads.

It sounds like cellulose fiber can mean anything from they milled old corn stalks to mixing in saw dust to literally feeding us a cardboard box. They never specify where it came from.

Anyone knows what the typical source of cellulose fiber is?
While not opposed to consuming inedible plants, is there a downside to this concept? (i.e. if it was actually sawdust from milling oak)

 

[jhausch]

Essentially "paper dust" is a common anti caking agent for shredded cheese

 

[Sac Arrow]

It's pretty low calorie, and it is fiber, so don't knock it!