What it does: Quercetin helps the body neutralize free radicals and supports healthy inflammatory and immune responses, which are important for overall wellness.
How it is used: Quercetin is commonly used in supplements aimed at immune defense, allergy support during pollen season, recovery after physical activity, and maintaining healthy aging.
Natural sources and supplement forms: Rich natural sources of quercetin include red onions, apples, berries, kale, broccoli, and capers. As a supplement, it is available in capsules, tablets, and powders, sometimes combined with vitamin C or bromelain for better absorption.
Why it appears in supplement formulas: Quercetin is selected for formulas due to its potent antioxidant properties and its recognized roles in immune support and encouraging normal inflammation regulation.
What to know before use: Quercetin is usually well tolerated at common supplement doses, but large amounts may occasionally cause mild digestive discomfort; consult your healthcare provider if you take medications or have medical concerns.
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.
