Importance Changes in the economy, nutrition policies, and food processing methods can
affect dietary macronutrient intake and diet quality. It is essential to evaluate trends in dietary
intake, food sources, and diet quality to inform policy makers. Objective To investigate trends
in dietary macronutrient intake, food sources, and diet quality among US adults. Design,
Setting, and Participants Serial cross-sectional analysis of the US nationally representative
24-hour dietary recall data from 9 National Health and Nutrition Examination Survey cycles …