Nordmann et al1(p293) wrote “We conclude that low-carbohydrate diets appear to be at least as effective as low-fat diets in inducing weight loss.” This conclusion is misleading because it is biased by their questionable decision to define a low-fat diet “as a diet allowing a maximum of 30% of the daily energy intake from fat.”1(p286) Such a subjective definition reflects a conformist adherence to old ideas that emerge to be untenable in light of new powerful insights derived from evolutionary biology.
Baschetti R. Definition of Low-Fat Diets. Arch Intern Med. 2006;166(13):1419–1420. doi:10.1001/archinte.166.13.1419-b