NEW YORK (Reuters Health) – A British study finds that consumption of apples and intake of selenium are inversely associated with asthma in adults. In addition, a higher consumption of red wine might reduce the severity of asthma in some people.
In a population-based, case-control study, Dr. Seif O. Shaheen, of King's College, London, and colleagues examined whether asthma is less common and less severe in adults who consume more dietary antioxidants. Participants were between the ages of 16 and 50 years and included 607 asthmatics and 864 controls.
The investigators found a negative association between apple consumption and asthma after controlling for total energy intake and potential confounding factors (odds ratio [OR] per increase in frequency group 0.89; p = 0.006). They also found a negative association between selenium intake and asthma (OR per quintile increase 0.84; p = 0.002), according to the report in the November 15th issue of the American Journal of Respiratory and Critical Care Medicine.
Intake of red wine was negatively associated with the severity of asthma. The team notes that "the associations between apple and red wine consumption and asthma may indicate a protective effect of flavonoids."
"The association with apples suggests that we need a better understanding of how flavonoids, or other constituents of apples, influence respiratory health," Dr. Shaheen and colleagues note.
Am J Respir Crit Care Med 2001;164:1823-1828.
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