Resumen: Context: The relationship between carbohydrate quality intake and metabolic syndrome (MetS) is of growing interest. Objective:We aimed to assess the association between the adherence to a dietary carbohydrate quality index (CQI) with the occurrence of MetS in a Spanish cohort of working adults. Methods: A cross-sectional study was conducted of 2316 middle-aged men, aged 50.9 (SD 3.9) years, with no previous cardiovascular disease, and pertaining to the Aragon Workers’ Health Study (AWHS) cohort. Diet was collected with a 136-item semiquantitative food-frequency questionnaire. The CQI (range 4-15) was based on: dietary fiber intake, a low glycemic index, the ratio of whole grains/total grains, and the ratio of solid carbohydrates/total carbohydrates. The higher the CQI, the healthier the diet. MetS was defined by using the harmonized National Cholesterol Education Programme–Adult Treatment Panel III (NCEP-ATP III) definition. The associations across 3-point categories of the CQI and the presence of MetS were examined using logistic regression. Results: An inverse and significant association between the CQI and MetS was found. Fully adjusted odds ratios (ORs) for MetS risk among participants in the 10- to 12-point category (second highest CQI category) was 0.64 (95% CI, 0.45-0.94), and in the 13- to 15-point category (highest category) was 0.52 (95% CI, 0.30-0.88), when compared with the 4- to 6-point category (lowest category). Participants with 10 to 12 and 13 to 15 points on the CQI showed a lower risk of hypertriglyceridemia: OR 0.61 (95% CI, 0.46-0.81), and 0.48 (95% CI, 0.32-0.71) respectively. Conclusion: Among middle-aged men, a higher adherence to a high-quality carbohydrate diet is associated with a lower prevalence of MetS. Triglyceridemia is the MetS component that contributed the most to this reduced risk. Idioma: Inglés DOI: 10.1210/clinem/dgad706 Año: 2023 Publicado en: JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM (2023), dgad706 [8 pp.] ISSN: 0021-972X Factor impacto JCR: 5.0 (2023) Categ. JCR: ENDOCRINOLOGY & METABOLISM rank: 30 / 186 = 0.161 (2023) - Q1 - T1 Factor impacto CITESCORE: 11.4 - Endocrinology, Diabetes and Metabolism (Q1) - Biochemistry (Q1) - Biochemistry (medical) (Q1) - Clinical Biochemistry (Q1) - Endocrinology (Q1)