It's long been known that air pollution influences the risk — and severity — of asthma. Now, there's emerging evidence that diet can play a role, too.
A new study finds that higher consumption of omega-3 fatty acids, found in oily fish such as salmon, sardines and lake trout, and in some plant sources such as walnuts and flaxseed, is linked to reduced asthma symptoms in city kids who are exposed to fairly high levels of indoor air pollution.
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