Quercetin

Overview:

Quercetin is a flavonoid found in many fruits, vegetables, and grains. It is known for its potent antioxidant and anti-inflammatory properties, making it a popular ingredient in dietary supplements.

Sources:

Quercetin is naturally present in foods such as apples, onions, berries, and green tea. It is also available in supplement form, often combined with other nutrients like vitamin C to enhance its absorption and effectiveness.

Functions:

Antioxidant: Quercetin neutralizes free radicals, protecting cells from oxidative damage and reducing the risk of chronic diseases.

Anti-Inflammatory: It inhibits the production of pro-inflammatory cytokines, helping to reduce inflammation and manage conditions like arthritis and allergies.

Immune Support: Quercetin enhances immune function by modulating immune responses and reducing the severity of viral infections.

Deficiency:

Quercetin is not an essential nutrient, so there is no established deficiency. However, a diet low in fruits and vegetables may result in lower intake of flavonoids like quercetin.

Toxicity:

Quercetin supplements are generally safe for most people when taken at recommended dosages. High doses may cause mild side effects such as headaches, stomach upset, and tingling sensations. It is advisable to consult with a healthcare provider before starting quercetin supplementation, especially for individuals with existing health conditions or those taking other medications.