The Claim
Over a period of 2.5 million years, human evolutionary adaptations resulted in metabolic pathways optimized for the utilization of animal-based foods as the primary energy and nutrient substrate.
What the research says
Not yet evaluated
We are still looking at what the research says.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Human metabolism evolved over 2.5 million years to rely primarily on animal-based foods for energy and essential nutrients.
See the scientific wording
The human body evolved over 2.5 million years to metabolize animal-based foods as its primary substrate.
When the diet is mostly animal protein with little fat or plants, the body breaks down excess protein for energy, flushes out nitrogen as urea while keeping heavier nitrogen isotopes in tissues, and uses amino acids from meat directly to build proteins without changing their chemical signature. This leaves a clear biological fingerprint in bones and teeth that matches the animals eaten.
Score breakdown, mechanism chain, raw evidence, ideal studies needed
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.