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Eating more fish can reduce the effects of asthma pollution: photos



Fatty fish such as salmon, sardines and lake trout, as well as some plant sources such as walnuts and linseed, can be good, tasty sources of omega-3 fatty acids.

MinoruM / Getty Images


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MinoruM / Getty Images

Fatty fish such as salmon, sardines and lake trout, as well as some plant sources such as walnuts and linseed, can be good, tasty sources of omega-3 fatty acids.

MinoruM / Getty Images

It has long been known that air pollution affects the risk and severity of asthma. A new study found that the higher consumption of omega-3 fatty acids found in oily fish such as salmon, sardines and lake trout, as well as in some plant sources such as walnuts and linseed, is associated with reduced symptoms of asthma in urban children exposed to relatively high levels of indoor air pollution

"We know that asthma is a disease that moves from inflammation, explains Dr. Emily Brigham, a pulmol John F. Hopkins University, and co-author of the study, as our bodies assimilate fish, omega-3 fatty acids generate side molecules known as "pro-permissive mediators" that enter our lungs. "They help resolve "Given the anti-inflammatory effect, Brigham and colleagues had a feeling that diets rich in omega-3 fatty acids could help reduce the effects of air pollution on the symptoms of children. To investigate this, they tracked diets and air pollution levels in the premises (from sources including smoke, dust and allergens) in the homes of 135 children, mostly African-Americans and all with asthma, in Baltimore, Maryland

. types of air pollution in the premises composed of different particle sizes: PM2.5 (fine inhalable particles that are 2.5 micrometers or less) and slightly larger PM10. These particles are too small for us to see, but they can penetrate our airways, and the smaller size – PM2.5 – can fall deep inside our lungs. Omega-3 is associated with reduced indoor particle effects on the symptoms, says Brigham. "Children who ate more omega-3 seem to be more resistant to the effects of the premiere."

Brigham and her team also appreciated the intake of omega-6 fatty acids found in vegetable oils and are numerous in many . processed foods containing butter. Americans usually eat a lot more omega-6 acids than omega-3, and this applies to all children in the Baltimore study. The study found that children who consumed the most omega-6 fatty acids had more severe symptoms of asthma.