Quercetin 500 Supports Immune and Heart Function*

Supports heart health and immune system function.^*

Subscribe & Save up to 10% OFF on select products:

Why quercetin?

Quercetin is one of the most studied dietary flavonoids and is often found in a variety of plant foods including fruits, vegetables, and tea. Although a lot of foods contain quercetin, the daily intake of quercetin for a person following a typical Western diet is estimated to be between 0 and 30 mg per day. However, research shows that the immune and cardiovascular benefits of quercetin are reached at supplemental intakes of 500 mg to 1,000 mg per day.*

Cardiovascular health

Quercetin plays multiple roles in supporting cardiovascular health. It helps maintain healthy blood pressure levels already in the normal range and helps promote the expression and activity of paraoxonase (PON), a HDL-associated protein with antioxidant properties. Quercetin also encourages healthy endothelial function.*

Immune response

Quercetin supports a healthy immune response. Preclinical studies demonstrate that quercetin affects immunity by acting on leukocytes and other immune cells.*

Oxidative stress protection

Free radical scavenging antioxidants like quercetin protect cells from harmful free radicals and inhibit oxidative stress.*

References

D’Andrea G. Fitoterapia. 2015;106:256-271.
Egert S et al. Br J Nutr. 2009;102(7):1065-74.
Glinsky G. Biomedicines. 2020;8(5):129.
Huang H et al. Nutr Rev. 2020;nuz071.
Li Y et al. Nutrients. 2016;8(3):167.
Mohammadi-Sartang M et al. Eur J Clin Nutr. 2017;71(9):1033-1039.
Serban M et al. Am Heart Assoc. 2016;5:e002713.
Zhang QF et al. J Nutr Biochem. 2014;25:420-428.

Personal or Practitioner

Create Account

Products

Product Information

Connect with a Practitioner

How Can We Help You Improve Your Health?

Quercetin 500 Supports Immune and Heart Function*

Subscribe & Save up to 10% OFF on select products:

Supplement Facts

Subscribe & Save up to 10% OFF on select products:

Supplement Facts

Why quercetin?

Cardiovascular health

Immune response

Oxidative stress protection

References

Label & Supplement Facts