Less-energy-dense diets of low-income women in California are associated with higher energy-adjusted costs but not with higher daily diet costs.

摘要

I have concerns about the relevance of the research and the accuracy of Townsend et al's conclusion in their recent article (1). The article failed to show the usefulness or policy relevance of an inverse association between energy density and energy costs while promoting the perception that healthier diets cost more, when their own data show that the highest-energy-dense diets (‘‘least healthy’’) are actually associated with the highest daily diet costs.