Vitamin D strengthens the response of the immune system — your body’s defense against germs — and could lessen swelling in your airways. Having low vitamin D levels can lead to more asthma attacks. A regualr 15-20 mins to sunshine and foods like milk, eggs, and orange juice, which are often “fortified” with vitamin D can help in fighting asthma.
Nuts and Seeds contain vitamin E good for fighting asthma. Almonds, hazelnuts, and raw seeds are good sources, as well as cruciferous vegetables like broccoli and kale. Vitamin E has tocopherol, a chemical that could help cut how much you cough and wheeze from your asthma.
Fish contains omega-3 fatty acids, especially in fatty fish like salmon, herring, tuna, and sardines. They help lessen the amount of IgE your body makes. That’s an antibody that causes breathing problems in some people with asthma. But the high doses of oral steroids that some people use to treat serious asthma can block much of this helpful effect.
Foods made from tomatoes seem to help people with asthma. Scientists think it may be the lycopene that helps most, but more research is needed. Some studies show they can keep you breathing better over the long term.