Quercetin is a plant pigment (flavonoid). It's found in many plants and foods, such as red wine, onions, green tea, apples, and berries. Quercetin has antioxidant and anti-inflammatory effects...

Quercetin is the aglycone form of a number of other flavonoid glycosides, such as rutin (also known as quercetin-3-O-rutinoside) and quercitrin, found in citrus fruit, buckwheat, and onions. [2]

Jul 16, 2024 · Quercetin is a natural pigment present in many fruits, vegetables, and grains. This article explores quercetin’s uses, benefits, side effects, and dosage.

Aug 23, 2024 · What Is Quercetin? Quercetin is a type of flavonoid antioxidant that’s found in plant foods, including leafy greens, tomatoes, berries and broccoli. It’s technically considered a “plant …

Oct 11, 2025 · Quercetin is an antioxidant naturally found in foods and drinks and available as a supplement. It has benefits for heart, immune, and brain health.

Oct 9, 2025 · Find out more about quercetin, a plant-based antioxidant, and anti-inflammatory pigment.

Oct 23, 2025 · Quercetin is an antioxidant in many fruits and vegetables. You can also take quercetin supplements. Here’s how much quercetin you need, what it’s good for, and info on its safety profile.

Quercetin is a plant-derived compound known as flavonoid, the pigment that gives many flowers, fruits and vegetables their colors. Quercetin is widely available over the counter as oral formulations and is …

Jan 19, 2024 · Quercetin is a pigment in many plants, fruits, and vegetables. Quercetin has powerful antioxidant properties and may help protect against certain health conditions, including heart disease.

Sep 1, 2024 · When consumed naturally in fruits and vegetables, quercetin has some health advantages that are especially useful.