Intake of Dietary Nutrients and Asthma Risk.

Date:

17-May-2006

Source

Thorax

Related Monographs

Consumer Data: Asthma Manganese Vitamin C
Professional Data: Asthma Manganese Vitamin C

Article

Asthma is a common lung condition in the industrialized world, one that impacts the lives of adults and children alike. Asthma threatens one's essential ability to breathe, to take in oxygen, our most basic and urgent survival need. We cannot live without air for more than a few minutes. Choke off our air supply, and we quickly become frightened and desperate, to the point of panic. It is easy to understand why asthma is one of the most taxing, debilitating health problems a human being can face, both physically and mentally.

When the airways are constricted by an asthma attack, their delicate membrane linings become swollen and inflamed. Almost two-thirds of all people with asthma, about 65 percent, experience their first symptoms—wheezing, shortness of breath, and rapid heartbeat-- by age five. Although asthma is a chronic lung disease that persists for years and even for a lifetime, the bronchial constriction itself is reversible; the attack can be stopped and normal breathing restored.

A recent study examined the role of dietary nutrients and asthma risk in adults. Previous studies have shown an inverse association between antioxidants and asthma. This study involved 515 participants diagnosed with asthma and 515 healthy cases. Food diaries were kept for 7 days by all participants. The results showed that both groups were similar in sex, age, and caloric intake. However, those with zero or a low intake of fruit had an increased risk for diagnosed asthma. Upon further examination, researchers found that vitamin C and manganese were mainly associated with a decreased risk. The authors concluded that, “Symptomatic asthma in adults is associated with a low dietary intake of fruit, the antioxidant nutrients vitamin C and manganese, and low plasma vitamin C levels.”1

References

1. Patel BD, et al. Dietary antioxidants and asthma in adults. Thorax. May 2006;61:388-393.