Changes in intake of plant-based diets and weight change: results from 3 prospective cohort studies

Studies have found beneficial effects of plant-based diets on weight. However, not all plant foods are necessarily beneficial. The aim of this study was to examine associations of changes in intake of 3 variations of plant-based diet indices (overall, healthful, and unhealthful) with weight change over 4-y intervals spanning >20 y. Data from 3 ongoing prospective observational cohort studies in the United States were used, namely the Nurses’...