ArticleBMJ nutrition, prevention & health2026
Association between composite dietary antioxidant index and pulmonary function in middle-aged and older adults: results from two population-based studies.
Article in BMJ nutrition, prevention & health, 2026. 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
Background: The decline in pulmonary function among older adults is a widespread issue, lacking specific dietary guidelines for optimising respiratory health. Methods: Data from the Guangzhou Biobank Cohort Study (GBCS) and National Health and Nutrition Examination Survey (NHANES) were analysed to assess the association of the Composite Dietary Antioxidant Index (CDAI) with key pulmonary function indicators in individuals aged 50 and older. Results: The study included 8640 participants from GBCS and 4029 from NHANES, with a mean age of 62.5 years. After adjusting for confounders, higher CDAI scores were significantly linked to increased forced expiratory volume in 1 s (FEV Conclusions: Higher CDAI scores correlate with improved pulmonary function, particularly in women and older adults, underscoring the need for dietary recommendations that emphasise antioxidant-rich foods to enhance respiratory health and support healthy ageing.
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