Studies on modern hunter-gatherers tell us almost nothing about what our ancestors ate. All modern HGs, outside the Arctic, live in marginal areas with very restricted food supplies and no large game. They eat what is available not what is the most nutritious. Our ancestors on the savannah 200,000 years ago had ample access to shellfish and fat-rich large game. They would have simply eaten the fat and discarded most of the lean meat because food was so readily available.

Cordain’s comments on aborigines is absolutely wrong. Before European settlement most aborigines lived on the coast or on large rivers. They consumed large amounts of fish and shellfish and fatty marine mammals such as dugongs.