These studies are too small and too short in duration to form a definitive conclusion about the paleo diet.
However, the diet is growing in popularity, and research on its effectiveness continues. For example, in 2019 a systematic review and meta-analysis looked at findings from 1,088 articles. The results supported the use of the paleo diet in reducing weight, BMI, and waist circumference (6).
As researchers carry out larger and longer studies, more evidence may emerge to support the health benefits of the paleo diet.
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