What it does: Quercetin helps neutralize free radicals and supports a balanced immune system, which may help the body cope with oxidative stress and normal inflammatory processes.
How it is used: People use quercetin supplements to help with immune health, seasonal allergy support, exercise recovery, and maintaining healthy aging.
Natural sources and supplement forms: Natural sources of quercetin include red onions, apples, berries, kale, broccoli, and capers. It is available as a dietary supplement in tablets, capsules, and powders, sometimes combined with vitamin C or bromelain to enhance absorption.
Why it appears in supplement formulas: Quercetin is used in supplements for its antioxidant capacity and its ability to support immune balance and modulate the body's normal inflammation response.
What to know before use: Quercetin is generally well tolerated, but high doses may cause mild digestive upset; consult a healthcare provider if you have health conditions or take prescription medications.
Interesting Fact
Quercetin: A Colorful Compound in Everyday Foods
Quercetin is responsible for the vivid red, blue, and purple shades found in many fruits and vegetables such as apples, red onions, and berries. This natural pigment is a type of plant polyphenol, a group known for their roles in plant defense. Quercetin's presence across a variety of colorful produce is one reason it is a common, plant-based ingredient in many supplement formulas.
