Natural Support for Immunity, Heart Health, Inflammation and Allergies

Quercetin is a type of flavonoid found in fruits and vegetables like apples, berries, onions, kale and broccoli. It is a powerful antioxidant that supports many areas of health.

1. Boost Immunity

Quercetin has been shown to enhance immune response. It can stimulate immune cells and lower the risk of respiratory infections in clinical trials. Studies also highlight its ability to combat free radicals and protect cells from damage^[1].

2. Support Cardio Health

Research suggests that quercetin supports cardiovascular health by improving blood vessel function and lowering blood pressure. It enhances endothelial function, helps reduce oxidation of LDL cholesterol and lowers inflammatory markers common in heart disease^[2].

3. Reduce Inflammation

Quercetin decreases levels of inflammatory enzymes and cytokines such as TNF‑α, IL‑6 and IL‑1β. These benefits have been observed in both human and animal studies. In one small trial, 500 mg per day eased morning stiffness and pain for women with rheumatoid arthritis^[3].

4. Combat Allergies

Lab and animal studies show quercetin blocks histamine release and inflammatory enzymes, which helps ease allergy symptoms. One mouse study found reduced airway inflammation, while cell studies indicate a calming effect on histamine release^[4][5].

References

1. Li, Y., Yao, J., Han, C., Yang, J., Chaudhry, M. T., Wang, S., Liu, H., & Yin, Y. (2016). Quercetin, inflammation and immunity. Nutrients, 8(3), 167. https://doi.org/10.3390/nu8030167
2. Serban, M. C., Sahebkar, A., Zanchetti, A., et al. (2016). Effects of quercetin on blood pressure: A systematic review and meta‐analysis of randomized controlled trials. Journal of the American Heart Association, 5(7), e002713. https://doi.org/10.1161/JAHA.115.002713
3. Javadi, F., Ahmadzadeh, A. M., Ebrahimzadeh, F., & Rezaei, M. (2017). Quercetin and inflammatory diseases: Therapeutic potential and mechanisms of action. World Journal of Methodology, 7(4), 69–76. https://doi.org/10.5662/wjm.v7.i4.69
4. Rogerio, A. P., Dora, C. L., Andrade, E. L., et al. (2007). Anti-inflammatory effect of quercetin-loaded microemulsion in the airways allergic inflammatory model in mice. Pharmacological Research, 55(6), 546–552. https://doi.org/10.1016/j.phrs.2007.04.002
5. Boots, A. W., Haenen, G. R. M. M., & Bast, A. (2008). Health effects of quercetin: From antioxidant to nutraceutical. European Journal of Pharmacology, 585(2–3), 325–337. https://doi.org/10.1016/j.ejphar.2008.03.008