Turmeric: what the evidence actually shows

surging turmeric — attention well ahead of the human evidence

Reviewer and governance status are shown on each atomic claim below.

What it is

Turmeric is tracked as a health intervention in this evidence graph. Also known as: curcumin, Curcuma longa.

Studied forms and doses

No form-specific catalog record is available. This does not mean all forms are equivalent.

inflammation: 500–1000 mg curcumin; form not reported.
mood: 500–1000 mg curcumin/day; form not reported.
cognition: varies; often with a bioavailability enhancer; form not reported.
skin: varies; oral and topical forms studied; form not reported.

Mechanisms

Mechanistic plausibility is context, not proof that a clinical outcome improves.

No structured mechanism is recorded.

⚠ Safety in context

moderatewith Warfarin: High-dose curcumin may have mild antiplatelet effects; caution with warfarin.

Products and verification

No product label snapshot is mapped in this released catalog. Ingredient evidence does not establish any bottle’s identity, potency, purity, availability, or value.

Evidence by outcome

inflammationgrade Clow certainty— small anti-inflammatory signal; bioavailability is a major limitation

joint healthgrade Clow certainty— modest, short-term pain relief in osteoarthritis in small studies

moodgrade Clow certainty— curcumin may reduce depressive symptoms as an adjunct; bioavailability-limited

cognitiongrade Clow certainty— Systematic review: curcumin may modestly benefit some cognitive domains in older adults, but effects are inconsistent across domains and trials are small, with bioavailability a recurring limitation.

skingrade Clow certainty— Systematic review of clinical studies of turmeric/curcumin (oral and topical) across skin conditions (acne, atopic dermatitis, psoriasis, photoaging, pruritus and others): several studies reported significant improvement in disease severity versus control, but the authors characterize this as early evidence from a limited set of studies needing further confirmation.

People say · Evidence shows

“Turmeric cures inflammation”

aheadlargemarketing claim

Grade history

2026-07-16C → CSource correction by Claude (b2 garbage-source correction): replaced an off-topic search-fallback source (published before the pump's topica details →
2026-07-16C → CMerged additional source by Claude (gold-standard provenance sweep): a distinct, independently-verified paper ("The efficacy and safety of C details →
2026-07-16C → CCorrection by Claude (gold-standard provenance sweep): live Postgres source drift replaced with the verified seed source set [pmid-27533649] details →
2026-07-16C → CCorrection by Claude (gold-standard provenance sweep): live Postgres source drift replaced with the verified seed source set [pmid-36804260] details →

Re-review cadence: every 6 months (Grade C+) · next scheduled by 2027-01-16 · methodology v1.

By outcome — the money pages

Compare

sources: PMID:36804260 · PMID:27533649 · PMID:34017975 · PMID:28236605 · PMID:40579315 · PMID:27213821

Cite this page

Citation is encouraged. The proposed reuse license is CC-BY-4.0; status: pending-governance-ratification.

Plain-text citation

Substrate. Turmeric: what the evidence actually shows. https://evidencebased.info/interventions/turmeric. Updated 2026-07-16.

BibTeX

@misc{substrate_nterventionsturmeric,
  author = {Substrate editorial},
  title  = {Turmeric: what the evidence actually shows},
  year   = {2026},
  url    = {https://evidencebased.info/interventions/turmeric},
  note   = {evidencebased.info}
}