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Aim: The consumption of ultra-processed food (UPF) and its impact on diet quality has been extensively studied and reported in the literature, but only a few studies have focused on children and adolescents. The present study therefore aimed to describe UPF consumption in a representative sample of French children and adolescents and to evaluate its association with diet quality. Methods: The study included 1146 children and teenagers (3–17 years old) from the cross-sectional French Nutrition and Health Study 2006/2007 who completed three 24-hour food recalls over a period of 15 days. Food consumption was described using the NOVA classification. Regression models were used to estimate the association between UPF consumption and diet quality. Results: The UPF dietary share in children and adolescents represented 44.2% and 44.5% of total energy intake respectively. In both age groups, UPF consumption was positively associated with dietary energy density and total carbohydrate and free sugars content, but negatively associated with dietary contents of protein, fiber, and potassium. UPF consumption also showed a positive association with inadequate intakes of energy density, free sugars, fiber, and potassium among children, and inadequate consumption of fiber and free sugars among teenagers. Conclusion: Higher UPF consumption among French children and adolescents is associated with a lower quality diet. [ABSTRACT FROM AUTHOR]

Purpose: To assess the cross-sectional association between dietary indexes (DI) that underlie, respectively, the Nutri-score (NS), the proposed Canadian 'High In' Symbol (CHIL) and the Diabetes Canada Clinical Practice Guidelines (DCCP) with food consumption, nutrient intakes and metabolic markers. Methods: 1836 adults (18–74 years) participating in the representative ESTEBAN study, conducted in mainland France in 2014–2016, were included in the analysis. Food consumption was assessed with three repeated 24 h dietary recalls. Anthropometric measurements and biomarkers of metabolic risk (cholesterol—total, LDL (Low Density Lipoprotein), HDL (High Density Lipoprotein)—triglycerides, glucose) were obtained through a clinical examination and fasting blood draw. The DI were assessed for their association with food consumption, dietary intakes and metabolic biomarkers as quintiles and continuous variables using multi-adjusted linear regression. Heathier diets were assigned to lower scores. Results: Correlations between scores ranged from + 0.62 between CHIL-DI and NS-DI to + 0.75 between NS-DI and DCCP-DI. All DIs discriminated individuals according to the nutritional quality of their diets through food consumption and nutrient intakes (healthier diets were associated with lower intakes of energy, added sugars and saturated fat; and with higher intakes of fiber, vitamins and minerals). NS-DI was associated with blood glucose (adjusted mean in Q1 = 5 vs. Q5 = 5.46 mmol/dl, ptrend = 0.001) and DCCP-DI was associated with BMI (Q1 = 24.8 kg/m2 vs. Q5 = 25.8 kg/m2, ptrend = 0.025), while CHIL showed no significant association with any anthropometric measures or biomarkers. Conclusions: This study provides elements supporting the validity of the nutrient profiling systems underlying front-of-package nutrition labellings (FOPLs) to characterize the healthiness of diets. [ABSTRACT FROM AUTHOR]