From the American Journal of Clinical Nutrition, 2015:
“Paleolithic nutrition, which has attracted substantial public attention lately because of its putative health benefits, differs radically from dietary patterns currently recommended in guidelines, particularly in terms of its recommendation to exclude grains, dairy, and nutritional products of industry.
Conclusions: The Paleolithic diet resulted in greater short-term improvements on metabolic syndrome components than did guideline-based control diets. The available data warrant additional evaluations of the health benefits of Paleolithic nutrition.”
Source: Paleolithic nutrition for metabolic syndrome: systematic review and meta-analysis