Conclusion: The results of a meta-analysis of 12 RCTs indicate that TCM intervention can improve the clinical treatment efficacy of CAG. NPAs identified seven hub TCM and 13 target genes associated with their actions, while bioinformatics analysis identified two DEGs between normal and CAG gastric tissues. Finally, molecular docking was employed to reveal the mechanism of action of the active molecules in TCM on the DEGs. These findings not only reveal the mechanisms of action of the active components of the TCMs, but also provide support for the development of new drugs, ultimately blocking the progressi
PubMed 38170849 ↗Quercetin
People mainly take Quercetin for immunity, pain & inflammation, longevity. Based on 150 first-hand reports and 207 meta-analyses & systematic reviews in the medical literature. Ranked #529 of 1,974 overall.
Of reports that state an outcome, 57% are positive.
What Quercetin does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Supplementation of some but not all micronutrients may benefit cardiometabolic health. This study highlights the importance of micronutrient diversity and the balance of benefits and risks to promote and maintain cardiovascular health in diverse populations. (Antioxidant Supplementation in the Prevention and Treatment of Cardiovascular Diseases; CRD42022315165).
PubMed 36480969 ↗Conclusion: 3) Food matrix effects: the addition of dietary fats and fibre increased bioavailability by ∼2-fold. This review summarises key factors that enhance quercetin bioavailability, contributing to the development of more effective and practical quercetin supplements or functional foods for better bioactivity of quercetin in humans.
PubMed 40037045 ↗Conclusion: According to the study findings, resveratrol, curcumin, and quercetin are reported to have a wide variety of beneficial effects as supplement therapies. The investigated phenolic compounds seem to positively mediate bone metabolism and osteoclast-related pathologies.
PubMed 36079777 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Take Quercetin instead of antihistamines, its a natural one”
“I'd really like to create a patch of powerful senolytics to take while I sleep.”
“What's your opinion on other potentially anti-aging therapies like NMN & NR, NAD+ therapies, rapamycin, Dasatanib, resveratrol, and quercetin?”
“Quercetin (500-1000mg) is another popular choice but it can cause insomnia... people have reported some short term memory problems”
“Quercetin is sometimes brought up as an alternative, but it has the same transformation problems”
Top discussions (5)
- My Biohacking Protocol!!! 1-Year Difference: Tackling Acne, Redness, and Inflammation ↗
- ranked 42 supplements by what 1000+ guest researchers and clinicians actually agree on across 3,500 longevity podcast episodes. full tier list inside. ↗
- Nac is freaking awesome. Now I understand why it was taking off the market during covid!! ↗
- Quercetin, not caffeine, is a major neuroprotective component in coffee (2016) ↗
- Mice consuming the human equivalent of 2 ounces of walnuts a day had a 60% reduction in tumor size compared to mice consuming a corn-oil based diet. (n=22, 30 days) Walnuts contain multiple components which inhibit the protein complex that is responsible for the deadly COVID-19 cytokine storm. ↗
Other options for immunity
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate