High fiber intake is a modifiable lifestyle factor which may decrease COPD risk primarily in current and ex-smokers.

PMID: 

Eur J Nutr. 2019 Jul 6. Epub 2019 Jul 6. PMID: 31280344

Abstract Title: 

Long-term dietary fiber intake and risk of chronic obstructive pulmonary disease: a prospective cohort study of women.

Abstract: 

PURPOSE: Until now, only two prospective cohort studies have investigated dietary fiber intake in relation to risk of chronic obstructive pulmonary disease (COPD), but neither examined long-term fiber intake. Both studies reported that total fiber intake was associated with decreased COPD risk; however, results for specific fiber sources were inconsistent. Thus, we prospectively evaluated the association between baseline and long-term intake of dietary fiber and COPD risk in a population-based prospective cohort of 35,339 Swedish women.METHODS: Dietary fiber intake was assessed in 1987 and 1997 with a food frequency questionnaire. Cox proportional hazard regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs).RESULTS: During follow-up (2002-2014), 1557 COPD cases were identified via linkage to the Swedish National Patient Register. Long-term high dietary fiber intake (≥ 26.5 vs.

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