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Janelas alimentares mais longas estão associadas a um perfil menos favorável de histórico de peso e a maior frequência de estratégias para perda de peso em adultos: estudo com dados do NHANES

Wed, 08 Apr 2026 00:00:00 GMT

Title: Janelas alimentares mais longas estão associadas a um perfil menos favorável de histórico de peso e a maior frequência de estratégias para perda de peso em adultos: estudo com dados do NHANES Abstract: Purpose: To investigate the association between eating window duration, categorized into tertiles, and variables related to weight history obtained from the NHANES weight history questionnaire. Methods: This cross-sectional study included 32,053 adults from the NHANES (2003–2018). Eating window duration was estimated from 24-hour dietary recalls and divided into tertiles (T1: shortest eating window; T2: intermediate eating window; T3: longest eating window). Associations with continuous (weight change over 1 and 10 years, age at maximum weight) and categorical (weight perception, weight loss attempts, bariatric surgery) weight history variables were evaluated. Statistical analyses used linear and logistic regression models, adjusted for confounders and accounting for the complex survey design. Results: Individuals in the longest eating window tertile (T3) showed greater weight reduction in the past year (-0.54 ± 0.13 kg in T3 vs. 0.09 ± 0.10 kg in T1) and less cumulative weight gain over 10 years (3.41 ± 0.21 kg in T3 vs. 4.98 ± 0.21 kg in T1), as well as reaching their maximum weight at an earlier age (24.84 ± 4.10 years in T3 vs. 50.76 ± 8.38 years in T1) compared to the shortest eating window group (T1). The longest eating window group (T3) also reported higher perceived obesity (36.7% in T3 vs. 28.7% in T1), desire to lose weight (37.0% in T3 vs. 28.5% in T1), and a history of severe weight cycling (≥11 times losing ≥4.5 kg; 46.2% in T3 vs. 22.3% in T1). In multivariate models, the longest eating window was associated with higher odds of weight loss attempts (OR: 1.11; 95% CI: 1.02–1.22; p = 0.017), intentional weight loss (OR: 1.50; 95% CI: 1.26–1.78; p < 0.001), and history of bariatric surgery (OR: 2.73; 95% CI: 1.47–5.06; p = 0.002) when compared to the reference group (T1). Conclusion: Longer eating windows are associated with a less favorable weight history profile and a higher frequency of weight loss strategies in adults. The temporal dimension of eating is a potentially relevant factor in lifelong weight management.

Estado nutricional de população em situação de rua

Tue, 24 Mar 2026 00:00:00 GMT

Title: Estado nutricional de população em situação de rua Abstract: The homeless population is particularly vulnerable to nutritional problems, yet it remains underrepresented in research in Brazil. This study aimed to assess the nutritional status of people experiencing homelessness in the city of Uberlândia, MG. A cross-sectional design was used, involving 181 individuals receiving services at shelter facilities. Anthropometric measures included body mass index (BMI), calf circumference, waist circumference, waist-to-height ratio, and waist-to-hip ratio. Overall, 52.8% of participants were classified as having a normal BMI, while 24.2% were overweight, 15.2% obese, and 7.9% underweight. Regarding cardiovascular risk, 68.5% were considered low risk based on waist circumference, whereas 59.0% showed increased risk according to the waist-to-height ratio. These findings underscore the importance of a multidimensional approach to nutritional assessment, as conventional indicators may not fully capture specific vulnerabilities. This study contributes to a better understanding of this population and provides evidence to inform public policies and interventions aimed at reducing nutritional vulnerabilities.

Estado nutricional e consumo alimentar da população brasileira por raça/cor

Tue, 31 Mar 2026 00:00:00 GMT

Title: Estado nutricional e consumo alimentar da população brasileira por raça/cor

Padrões de consumo alimentar e mortalidade por câncer colorretal nas capitais brasileiras: um estudo ecológico

Fri, 20 Mar 2026 00:00:00 GMT

Title: Padrões de consumo alimentar e mortalidade por câncer colorretal nas capitais brasileiras: um estudo ecológico