ArticleThe American journal of clinical nutrition2025
Association of meal timing with adiposity measures and gut microbiome characteristics in a cohort study: the Hispanic Community Health Study/Study of Latinos.
Article in The American journal of clinical nutrition, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundTime-restricted eating may help control weight through caloric restriction, circadian rhythm, or influence on the gut microbiome (GMB). Physical activity (PA) also plays a role, as people with a longer eating window (EW, time between first and last daily intake) may be more active. The associations between meal timing, adiposity, PA, sedentary behavior (SB), and GMB characteristics are of interest in Hispanic/Latino persons, who experience a high burden of cardiometabolic diseases.
objectivesWe explored the relationship of EW with energy intake and accelerometer-measured activity and assessed whether a longer EW and later midpoint of intake (MOI, midpoint time of intake) are associated with adiposity and GMB differences in Hispanic/Latino adults.
methodsUsing data from the prospective Hispanic Community Health Study/Study of Latinos (n = 11,778 participants with valid 24-h dietary recall and accelerometer data, no unplanned weight loss, and BMI ≥ 18.5 kg/m
resultsThose with longer EW tended to have less SB and greater energy intake, suggesting that some individuals may balance greater intake with greater expenditure. After adjustments including energy balance, each hour of EW was associated with 0.29% higher BMI (95% confidence interval [CI]: 0.07, 0.51; P = 0.011). Longer EW and caloric EW (EWC, EW, caloric meals only) were associated with several obesity-associated GMB taxa, such as Streptococcus (enriched, β: 0.04; 95% CI: 0.01, 0.07, for EW). MOI was not significantly associated with adiposity or GMB characteristics.
conclusionsShorter EW may promote healthy weight, but some individuals with longer compared with shorter EWs tend to have greater activity that could balance their greater energy intake. EW and EWC may influence GMB characteristics.
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