Geoffrey Purcell wrote:
 >I do think seeds are palaeo. Besides, palaeo peoples must have eaten
 >the seeds in fruit, for example.

But seeds in fruit are not supposed to be digested. Fruits expect 
their seeds to pass through be deposited some place else.

This is what I have drafted so far:

The effort to collect most seeds would not be as optimal as 
collecting other foods, unless collected as a condiment for the 
seed's taste. Some meaty seeds, like sunflower, may have been a food.

Don.