Curcumin
The main active compound in turmeric, studied for inflammation and metabolic markers.
Supplements
Research records
Historical source snapshot. Not freshly verified, not a recommendation. Study findings, community accounts and app defaults are not interchangeable.
Publication suitability · 2026-10-15: Historical reference only; not a clinical verification. Clinical, regulatory, efficacy, safety and dose claims are not independently established by this review.
Curcumin
The main active compound in turmeric, studied for inflammation and metabolic markers.
Evidence category: Systematic review. This describes the source category, not approval or certainty.
Regulatory statement in source: Not separately recorded; do not infer approval from the evidence category.
Curcumin is the primary polyphenol compound in turmeric, studied for antioxidant and anti-inflammatory properties but limited by poor natural absorption from the gut. An umbrella review pooled a large number of randomized controlled trials examining bioavailability-enhanced and standard curcumin formulations for effects on body weight and related anthropometric measures.
Benefits reported in the imported source
- Small reductions in body weight and waist circumference across pooled randomized trials
- Bioavailability-enhanced formulations show larger effects than standard curcumin
- Large research base also examines anti-inflammatory biomarkers alongside anthropometric outcomes
Risks and limits
- Effect sizes on weight measures are small and of uncertain clinical relevance
- Natural absorption is poor, so formulation quality varies widely between products
- A substantial share of the pooled trials were rated at high risk of bias
Source bottom line: Pooled randomized trial evidence shows a statistically real but modest effect on weight measures, with meaningful uncertainty from bias in the underlying trials.
Uncertainty: Reference information only. Not medical advice.
Study protocols — reports, not instructions
Adults, including subgroups with obesity and type 2 diabetes, pooled across fifty randomized controlled trials
- Reported regimen
- Standard and bioavailability-enhanced curcumin formulations (including piperine-combined and phospholipid forms) compared with placebo across trials of varying duration
- Duration
- Trials of varying duration, pooled across fifty studies
- Reported outcome
- Small but statistically significant reductions in body mass index, body weight and waist circumference, with larger reductions for bioavailability-enhanced formulations
- Source
- The effect of curcumin supplementation on weight loss and anthropometric indices: an umbrella review and updated meta-analyses of randomized controlled trials - PubMed
Claim provenance
evidence.json#/catalog:supplement:curcumin/protocols/0
Community and practice descriptions
Accounts of a practice are not evidence of safety or effectiveness. Words such as “standard”, “safe” or “recommended” describe the source account, not verified consensus or this wiki’s advice. Commercial and self-published citations are retained for traceability, not vendor endorsement or independent clinical corroboration.
Historical research outcome: no-verified-description · 2026-10-06
No suitable community description was independently verified in these checks. The entry remains empty; this does not establish that no practice exists elsewhere. The excerpt advises a piperine combination to increase absorption; this must not become a claim about observed common use or a benefit assertion.
- https://www.health.harvard.edu/healthy-aging-and-longevity/turmeric-benefits-a-look-at-the-evidence: no-practice-description — The excerpt advises a piperine combination to increase absorption; this must not become a claim about observed common use or a benefit assertion.
Pharmacokinetic context
Historical half-life estimate: 6.77 hours. Vareed et al. 2008, Cancer Epidemiol Biomarkers Prev, PMID 18559556 — total-conjugate model at very high (10-12 g) doses; free curcumin was undetectable in 11 of 12 subjects, reflecting its famously poor oral bioavailability Population/route context and estimates may differ. This is not a schedule or a verified human dosing rule.
Source references
Snapshot provenance
Source ID: catalog:supplement:curcumin. Commit: adc7684614f9439b41d91a3312b62e7982c7e20e. Review state: historical-not-reverified. Authored links are retained separately from the canonical evidence links in the public data. App templates/defaults and rejected drafts are archived, not deployed.
Related entries and components
None listed.