September 1, 1998American Journal of Respiratory and Critical Care Medicine
Effects of Changes in Fresh Fruit Consumption on Ventilatory Function in Healthy British Adults
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Discussion
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Implication
Longitudinal study reveals that reduced fresh fruit intake accelerates lung function decline in healthy adults, suggesting dietary effects on respiratory health are reversible rather than progressive.
Key Points
- To investigate whether longitudinal changes in fresh fruit intake are associated with changes in ventilatory function among healthy adults over a seven-year interval.
- Longitudinal cohort study of 2,171 British adults aged 18 to 73 years with no reported history of chronic respiratory disease, examined in 1984 and reexamined 7 years later.
- Dietary intake was estimated via food frequency questionnaires at both visits, and ventilatory function was measured by change in forced expiratory volume in one second (FEV1), standardized for age, height, and sex.
- Statistical models adjusted for region, social class, and smoking status.
- Changes in fresh fruit consumption levels were positively associated with changes in FEV1 (p = 0.002).
- Participants with the greatest reduction in fresh fruit intake experienced a more marked decline in FEV1 of 107 ml (95% CI, 36 to 178 ml) compared to those with no change in intake.
- Average levels of fruit intake were not associated with changes in FEV1 over the follow-up period (p = 0.695).
Cite This Study
Carey et al. (1998) studied this question.