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Editor's Correspondence
July 10, 2006

Definition of Low-Fat Diets—Reply

Author Affiliations

Copyright 2006 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.2006

Arch Intern Med. 2006;166(13):1420. doi:10.1001/archinte.166.13.1420-a

In reply

Baschetti criticizes our meta-analysis for including studies defining low-fat diets as diets allowing a maximum of 30% of the daily energy intake from fat. He calls this definition “subjective” and “untenable” in the light of new insights derived from evolutionary biology, suggesting that our ancestors consumed a maximum of 10% to 15% of energy as fat. However, a conflicting report estimates that the ancestral diet was a high-fat, high-protein diet compared with current recommendations.1 Regardless, evolutionary theory would suggest that diet need only allow an individual to reach reproductive age, and hence, “premature” atherosclerosis or cancer would not likely exert evolutionary pressure.

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