Abstract
Aim: Diet might modulate lung function decline. We assessed the relationship between baseline dietary intake and 13 year lung function decline in European adults. Methods: In 2000, adults from Norway, Germany and the UK, from the European Community Respiratory Health Survey (ECRHS) answered questions on respiratory health, and had the following spirometric measurements: Forced vital capacity (FVC), forced exhaled volume in 1 second (FEV1), from which the ratio FEV1/FVC, FEV1 below lower limit of normal (FEV1 Results: 733 individuals (mean age 43.5 ± 6.6 years at baseline) were included. A per-tertile increase in vitamin C intake was associated with a -3.74 mL/year lower decline in FEV1 (95% CI -7.29, -0.20). Per-tertile increase in pizza intake was associated with a more accelerated FEV1 and FVC decline (5.63 ml/year (95% CI 2.69, 8.57); 4.65mL/year (95% CI 0.88, 8.41) respectively). These associations remained statistically significant after controlling for multiple testing. In ex-smokers, a per-tertile increase in total fruit intake at baseline was associated with a lower decline in FEV1 (-4.91 mL/year (95% CI -9.68, -0.13) and FVC (-19.45 mL/year (95% CI-32.99, -5.91). Conclusion: Dietary intake of vitamin C and total fruit intake may slow down lung function decline in adults.
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