John Durant on the Typical Hunter-Gatherer Diet

"The typical hunter-gatherer diet was very diverse. Over the course of a year a diet might have included hundreds of wild plant species and dozens of wild mammals, fish, reptiles, and insects. Almost the entire animal would be eaten or put to use, including bones, organs, and marrow. Roots and tubers were an important food source. The wild predecessors to grains - like wheat, corn, or rice - were negligible until late in the Paleolithic, though some wild grasses were consumed (we ended up domesticating them after all). Some foods were eaten raw, but a variety of cooking techniques were used. Because of the wide variety of food available and the tribe's migrations, famine was rare to nonexistent."

The Paleo Manifesto