Published on 25 September 2023 at 13:24

Benefits of Quercetin

—Jill Fandrich, PharmD, CRPh


Quercetin is a flavonoid compound that is found in a variety of fruits, vegetables, and grains. It plays a crucial role in protecting plants from oxidative stress and harmful external factors. Additionally, quercetin offers a range of potential health benefits for humans, making it a popular and essential dietary supplement. Here are some benefits of quercetin:


1. Anti-inflammatory properties - Quercetin has strong anti-inflammatory effects, which can help reduce chronic inflammation in the body. Inflammation is often associated with various health conditions, such as arthritis, heart disease, certain types of cancers, and the inflammatory effects of COVID-19. By reducing inflammation, quercetin may help alleviate symptoms and improve overall health.


2. Antioxidant activity - As a potent antioxidant, quercetin helps neutralize harmful free radicals in the body. Free radicals are unstable molecules that can damage cells and contribute to the development of chronic diseases, including cancer, cardiovascular disease, and neurodegenerative disorders. By scavenging free radicals, quercetin helps protect cells from oxidative stress and promotes overall health and longevity.


3. Immune system support - Quercetin has been shown to enhance immune system function by modulating immune cell activity. It helps regulate the production and release of inflammatory molecules, such as cytokines, in response to infection or injury. Quercetin may also enhance the activity of the immune cells, such as natural killer (NK) cells and T cells, which play a crucial role in immune defense against pathogens.


4. Allergy relief - Quercetin possesses antihistamine properties that may help alleviate symptoms associated with allergies, such as hay fever, asthma, and skin irritations. It inhibits the release of histamine, a compound that triggers allergic reactions in the body. By reducing histamine release, quercetin may help reduce the severity of allergic symptoms and provide relief.


5. Cardiovascular health - Quercetin has been shown to have cardioprotective effects by promoting heart health and reducing the risk of cardiovascular disease. It helps improve blood circulation and vasodilation, which can lower blood pressure and reduce the risk of developing conditions like hypertension and atherosclerosis. Additionally, quercetin may help reduce LDL (bad) cholesterol levels and inhibit the formation of blood clots.


It is important to note that while quercetin has shown promising health benefits in various studies, further research is still needed to fully understand its mechanisms of action and its effectiveness in specific health conditions. Additionally, consulting with a healthcare professional before starting any new supplements is always recommended.


A suggested dosage is 500 - 1000 mg daily.


Quercetin teaches us the power of resilience, as it strengthens our bodies from within and fortifies us against the challenges of life. Just like the oak tree, it stands tall and unwavering, reminding us to stay rooted in our health and well-being.

—Dr. Jill

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