Quercetin and Allergies

Quercetin is a natural plant antioxidant that is found in foods like onions, apples, berries, and citrus fruit. It may help reduce inflammation and support the immune system. Studies show that quercetin works even better when taken with vitamin C.

Studies suggest quercetin may help reduce histamine release and calm inflammation in the airways. Histamine is one of the chemicals involved in allergy symptoms like sneezing, itching, congestion, and watery eyes.

Researchers have also found that quercetin may help reduce mucus production while helping the tiny hairs in the respiratory tract continue to function normally. These hairs help clear mucus and debris from the airways.

Why Vitamin C Helps

Vitamin C and quercetin work well together. Taking them together may improve their effectiveness while helping support normal immune function and reduce oxidative stress.

Try This

  • Follow the Roadmap to Health diet. This anti-inflammatory diet is high in polyphenols, which may help protect the respiratory tract and support immune health.
  • Take quercetin with vitamin C. Many people use them together during allergy season.
  • Reduce processed foods and sugar. These may increase inflammation and stress the immune system.

Want to Read Deeper Research?

For more detailed information and references on quercetin, inflammation, mucus production, asthma, antioxidants, mast cells, and immune function, read the full Quercetin Research Report.

Educational only — not medical advice.