摘要
INTRODUCTION: While nutrition's critical role in enhancing respiratory health is acknowledged, the specific impacts of vitamins A and K on lung function remain largely unexplored. The study aimed to evaluate the relationships between vitamins A and K intake and lung function.
METHODS: The cross-sectional study focused on adults aged 20-79 with utilizing data from US National Health and Nutrition Examination Survey (NHANES) 2007-2012. Lung function was assessed by measuring forced expiratory volume (FEV1), forced vital capacity (FVC), and the ratio of these two values (FEV1/FVC). Regression model was performed to determine the associations between intake of vitamins A and K and outcomes.
RESULTS: Data of 10,034 participants (representing 142,965,892 adults in the US) were analyzed. After adjusting for relevant confounders, multivariable analysis revealed 1 μg/day increase of vitamin A intake was significantly associated with 0.03 ml increased FEV1 ( p = 0.004) and 0.04 ml increased forced vital capacity (FVC) ( p < 0.001). In addition, 1 μg/day increase in vitamin K intake was significantly associated with 0.11 ml increased FEV1 ( p = 0.022). Neither vitamin A and K intake was associated with FEV1/FVC or presence of airway obstruction.
CONCLUSIONS: In relatively healthy population of the US, greater vitamin A or K intake was independently associated with better lung function assessed by spirometry. Benefits of such vitamins for pulmonary health should be confirmed in future randomized controlled trials.
原文 | 英語 |
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文章編號 | 1417489 |
頁(從 - 到) | 1417489 |
期刊 | Frontiers in Nutrition |
卷 | 11 |
DOIs | |
出版狀態 | 已出版 - 2024 |