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...

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 …

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]

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 …

Oct 9, 2025 · Quercetin is a plant chemical found in foods like apples, onions, and teas. Quercetin may help lower blood pressure and reduce inflammation, but more research is needed. …

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.

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, …

Feb 10, 2025 · What is quercetin? “Quercetin is a member of a group of phytochemicals, or plant chemicals, called flavonoids,” explains Molly O'Driscoll, a registered dietitian nutritionist at …

Quercetin is a flavonol—a subtype of potent substances called flavonoids that naturally occur in plants and offer a variety of beneficial health benefits to humans (and animals). In particular, …