Quercetin boosts immune function to prevent all illnesses
6.0Moderate
evidence
evidence
The Claim
Some assert that quercetin significantly enhances the immune system, making the body impervious to common illnesses like colds and flu.
Origin
This belief may arise from the supplement industry's marketing and anecdotal reports, emphasizing quercetin's potential immune-modulating effects.
What Science Says
Studies, including randomized controlled trials, show quercetin has some immune-modulating effects, such as increasing antioxidant capacity, but it does not provide immunity against illnesses. The impact is modest and more research is needed to determine its efficacy in immune support.
Verdict
Partially True