Three approaches to assessing dietary quality in Mexican adolescents from 2006 to 2018 with data from national health and nutrition surveys

To assess trends in the dietary quality of Mexican adolescents from 2006 to 2018, both overall and by sociodemographic indicators, using adaptations of the EAT-Lancet Planetary Health (PH) recommendations, optimal intake estimated by the Global Burden of Disease (GBD), and Mexican Dietary Guidelines (MDG) in nationally representative samples. Using dietary data from a semiquantitative food frequency questionnaire, dietary quality indexes were constructed as adaptations of three dietary intake recommendations. Trends in adherence to recommendations were evaluated with multivariate quantile regression models with survey year as the main independent variable and adjusted for age, sex, energy intake, dwelling area, geographical region, household assets condition, and student/non-student status. -values and confidence intervals were Bonferroni corrected. Mexico. Non-pregnant or lactating adolescents aged 12 to 19 (n=16,520). Adherence to the PH index was around 40%, GBD was nearly 35%, and MDG was around 37%. The lowest adherences were for added sugars, sugar-sweetened beverages, nuts and seeds, red meats, processed meats, and legumes (