May help reduce asthma symptoms
The airways that carry air into and out of the lungs are impacted by asthma, a chronic illness. Wheezing, shortness of breath, chest tightness, and coughing are some of the symptoms that result from these airways becoming irritated and starting to narrow. Increased levels of oxidative stress and inflammation in the body have been linked to asthma. According to some research, selenium may help lessen the symptoms of asthma because of its capacity to reduce inflammation. According to research, selenium levels in the blood are lower in patients with asthma.
In fact, research found that patients with asthma who had greater blood selenium levels had better lung function than those who had lower levels. Supplemental selenium may also lessen asthmatic symptoms. For instance, one study discovered that providing 200 mcg of selenium daily to asthma sufferers decreased their need for corticosteroid drugs to manage their symptoms. To properly comprehend selenium's function in the onset and management of asthma, however, more extensive investigations are required due to the contradictory nature of the available evidence.

