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• The historical focus on meat in Paleolithic diets reflects biases in the archaeological record and is supported by assertions that most calories in modern hunter-gatherer diets and Paleolithic diets (based on isotopic analysis) were derived from animal sources.
• Many paleoanthropologists argue that the modern Paleolithic diet's heavy focus on meat does not accurately replicate the diversity of foods consumed by human ancestors, nor does it account for the active lifestyles that protected them from heart disease and diabetes.
• Academic studies on historic and modern hunter-gatherer societies indicate that the actual Paleolithic diet was not composed entirely of meat and marrow.
• The Paleolithic (Paleo) diet is a nutritional regimen modeled after the perceived food consumption patterns of early human ancestors during the Paleolithic Era, which primarily consists of meat.
• Some writers, cited as reference [2] in the PMC article 'The Paleolithic Diet', assert that primitive Homo sapiens were omnivores who consumed a significantly higher quantity of vegetables than meat.