Adolescents’ diet quality in relation to their relatives’ and peers’ diet engagement and encouragement: the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) study

To examine the associations between adolescents' diet quality and their perceived relatives' and peers' diet engagement and encouragement.Cross-sectional study performed in European countries. Diet quality was scored using the Diet Quality Index for Adolescents (DQI-A) based on four components: quality, diversity, balance and meal frequency. Perceived diet quality engagement and perceived encouragement of the relatives/peers were assessed using...