The Scientific American states that, Paleolithic, or Stone Age, people lived as hunter-gatherers. Their diets varied according to geography, season and availability of foods. Paleolithic people did not farm to produce food, plant crops or keep domesticated animals. Their food sources consisted of: hunting for animals, fishing, scavenging remains left by animals and gathering wild plants, nuts, berries and seeds. Paleolithic diets did not contain grains, legumes or dairy products.