When you have a worldbuilding problem for a story you're not really working on at present, to which your mind returns periodically to niggle at it in search of an answer, it is very satisfying to find oneself niggling at it once again and this time having the answer fall into one's lap. And while it may not be satisfying to realize your failure to see said answer before came about because you let yourself fall into a rather stereotypical trap of perception, it's somewhat nice to also realize that means you'll have an opportunity to make a quiet demonstration of a point to which you have always spoken in support.
In other words, most hunter-gatherer caloric intake comes from the gathering, not the hunting. And I'd forgotten that.
Go about your business. All is well with the world now -- or at least with that world.