About Quercetin and its benefits
- Sharad Jaiswal
- Jul 15, 2024
- 3 min read
Quercetin is a flavonoid, a type of plant compound found in various fruits, vegetables, and grains. It is known for its antioxidant and anti-inflammatory properties, making it a popular subject of research for its potential health benefits.
Quercetin is found in many plant-based foods, such as apples, berries, grapes, onions, and leafy greens. When taken as a supplement, it is often extracted from natural sources like the bark of the Sophora japonica tree, also known as the Japanese pagoda tree.

Quercetin sourced from Sophora japonica is often preferred due to its high concentration and bioavailability. Quercetin 95% sourced from this plant indicates that the supplement contains 95% pure quercetin, and such a high purity level ensures that you are getting a concentrated dose of quercetin.
With its antioxidant and anti-inflammatory properties, this plant compound has garnered attention for its potential positive effects on the body. As an antioxidant, quercetin works diligently to combat harmful free radicals, unstable molecules that can damage cells and contribute to aging and disease. By neutralizing these free radicals, quercetin helps protect the body from their detrimental effects.
Additionally, quercetin exerts anti-inflammatory effects by inhibiting the production of inflammatory molecules like cytokines and prostaglandins. This anti-inflammatory action may be particularly beneficial for individuals dealing with conditions characterized by chronic inflammation, such as arthritis and heart disease.
Studies have shown that quercetin also possesses anti-proliferative and anti-tumor effects, meaning it can inhibit the growth of cancer cells and promote their death. This is particularly promising for the field of oncology, as it suggests that quercetin may have the potential to be used as an adjunct therapy in cancer treatment.
Quercetin has also been investigated for its ability to enhance the effectiveness of chemotherapy. Some research indicates that combining quercetin with certain chemotherapy drugs may lead to synergistic effects, enhancing the drugs' anti-cancer properties and potentially improving treatment outcomes.
It is also known to have antihistamine properties, which makes it a popular supplement for allergies and asthma.
Some of the potential health benefits of Quercetin are:
Inhibition of cancer cell growth: A study by Johnson et al. published in the journal "Cancer Prevention Research" in 2010 found that quercetin was able to inhibit the growth of breast cancer cells in vitro. The study suggests that quercetin may have potential as a natural cancer treatment.
Reduced risk of pancreatic cancer: A study by Bao et al. published in the journal "Cancer Epidemiology, Biomarkers & Prevention" in 2014 found that high quercetin intake was associated with a lower risk of developing pancreatic cancer in women. The study suggests that quercetin may have a protective effect against pancreatic cancer.
Anti-tumor effects: A study by Fan et al. published in the journal "Oncology Reports" in 2018 found that quercetin had anti-tumor effects in liver cancer cells. The study suggests that quercetin may have potential as a natural cancer treatment.
Anti-inflammatory properties: Quercetin has been shown to have anti-inflammatory properties, which may help to reduce inflammation in the body and potentially alleviate symptoms of inflammatory conditions such as rheumatoid arthritis and inflammatory bowel disease. A study published in the journal "Molecular Nutrition & Food Research" in 2016 found that quercetin supplementation reduced inflammation and oxidative stress in people with metabolic syndrome.
Cardiovascular health: Quercetin may also have potential benefits for cardiovascular health. A study published in the journal "Nutrients" in 2019 found that quercetin supplementation improved markers of cardiovascular health in people with high blood pressure. Additionally, a study published in the journal "Atherosclerosis" in 2017 found that quercetin supplementation reduced the risk of cardiovascular disease in people with a high risk of developing the condition.
Immune system support: Quercetin may help to support the immune system by reducing inflammation and oxidative stress. A study published in the journal "Nutrition Research" in 2016 found that quercetin supplementation increased antioxidant capacity and improved immune function in athletes.
Antioxidant properties: Quercetin has antioxidant properties, which may help to protect cells from oxidative damage caused by free radicals. A study published in the journal "Journal of Agricultural and Food Chemistry" in 2016 found that quercetin had potent antioxidant activity in vitro.
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