>Great questions.  But your conclusions that it’s likely our ancestors ate much more 

>fiber than we is based on what more than personal speculation?  One site does not a 

>pattern make.



My knee-jerk reaction is that ancient humans ate whatever they could get their hands on (that didn't kill them), whenever they could get their hands on it. The natural conclusion to that reaction is - sometimes they ate lots of fiber, sometimes not so much.



Could insect exoskeletons be considered "fiber"?



I doubt very much they would have put too much thought into it (Hmm, I've had my carbs for today, now I need some protein and fat - oops, I still need some more fiber :).



That's one of the problems with this kind of research. The very best we can do is guesstimate at a *very* rough average based on some very inconclusive data. Seasonal availability, regional availability, "taboos" would all have to be factored in.