The human adaptations to meat eating: a reappraisal

Claude Marcel Hladik (1) , Patrick Pasquet (1)

1 Eco-Anthropologie : environnement, populations, sociétés

In this paper we discuss the hypothesis, proposed by some authors, that man is a habitual meat-eater. Gut measurements of primate species do not support the contention that human digestive tract is specialized for meat-eating, especially when taking into account allometric factors and their variations between folivores, frugivores and meat-eaters. The dietary status of the human species is that of an unspecialized frugivore, having a flexible diet that includes seeds and meat (omnivorous diet). Throughout the various time periods, our human ancestors could have mostly consumed either vegetable, or large amounts of animal matter (with fat and/or carbohydrate as a supplement), depending on the availability and nutrient content of food resources. Some formerly adaptive traits (e. g. the “thrifty genotype”) could have resulted from selective pressure during transitory variations of feeding behavior linked to environmental constraints existing in the past.

Nous avons revu les différentes hypothèses concernant l'évolution du cerveau humain en relation avec les changements du régime alimentaire, au cours de l'évolution

Mots clés: meat eating; hominids; gut allometry; thrifty genotype

Mots clés: alimentation carnivore; hominidés; tractus digestif; génotype économeHuman Evolution

Domaines: Anthropologie biologique

Claude Marcel Hladik, Patrick Pasquet. The human adaptations to meat eating: a reappraisal. Human Evolution, 2002, 17, pp.199-206. ⟨hal-00545795⟩