Nuts would never be such a big part of a paleo diet. Limited harvest season
and trees.  There were no stores to buy unlimited quantities. There might be
the carbs or some other chemical in them that is giving you the sense of well
being. The excess lectins may be a problem.
-David

 > Yet eating them
 > seems to displace other foods out of my diet.  Then, again, walnuts are so
 > satisfying to me that I've actually wondered whether a paleo person could
 > live healthily and well with nuts as the main part of the diet.   But I
 > can't help but wonder about the lectins