Are the EAT-Lancet dietary recommendations associated with future cardiometabolic health? - Insights from the Generation XXI cohort from childhood into early adolescence.

BACKGROUND

The prospective effect of healthy and planetary diets on cardiometabolic health at young ages remains unclear.

OBJECTIVES

This study aims to investigate the prospective associations between adherence to the EAT-Lancet dietary recommendations at age 7 and the prevalence of obesity and Metabolic Syndrome (MetS) at 7, 10, and 13 y old.

METHODS

Participants are children from the Generation XXI birth cohort who completed 3-d food diaries at age 7, with complete data in variables of interest (n = 3564). Adherence to the EAT-Lancet dietary recommendations was evaluated using the World Index for Sustainability and Health (WISH); a higher score indicates a healthier and environmentally sustainable diet. At 7, 10, and 13 y, anthropometrics (weight, height, and waist circumference), blood pressure, serum-fasting triglycerides, high-density lipoprotein cholesterol, and glucose were measured. Obesity and MetS prevalence were determined by the World Health Organization and the International Diabetes Federation criteria, respectively. Adjusted custom binomial log-linear models were used to calculate prevalence ratios (PR) and the respective 95% confidence intervals (95% CI) (covariates: mother's age, education, prepregnancy body mass index (BMI), gestational diabetes, child's sex, age, Tanner stage, sports practice and total grams of the remaining food).

RESULTS

From 7 to 13 y, obesity decreased from 14.1% to 9.3% and MetS increased from 1.0% to 5.1%. Higher WISH scores at 7 y were associated with a lower prevalence of obesity, measured by both BMI (≥97th percentile: PR = 0.912; 95% CI: 0.839, 0.991; PR = 0.882; 95% CI: 0.79, 0.938, respectively at 10 and 13 y) and waist circumference (≥90th percentile: PR = 0.899; 95% CI: 0.830, 0.974; PR = 0.858; 95% CI: 0.782, 0.942, respectively at 10 and 13 y). For each 10-point increase in the WISH, a reduction of 16% in MetS prevalence at 13 y was observed (PR = 0.837; 95% CI: 0.732, 0.957). No significant effects were found at younger ages.

CONCLUSIONS

Adherence to the EAT-Lancet diet from an early age may help reduce cardiometabolic risk in early adolescence.