Compound or practice · Supplement

Curcumin (Turmeric)

A genuine anti-inflammatory for joints and mood — if you solve its terrible absorption; ignore the cancer-cure hype.

Overall grade
Grade B
Last revised
3
graded outcomes
0
references listed

A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.

2 at grade B · 2 at grade C — 4 graded rows

What is known

Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.

  • Osteoarthritis painEvidence grade B

    NSAID-comparable in trials

    Moderatemixed

  • Depressive symptomsEvidence grade C

    Modest adjunct

    Smallmixed

  • Metabolic markersEvidence grade C

    Small improvements

    Smallmixed

Conditions

How the entry reads its effect on diagnosed conditions: the direction first, then the grade. Never a substitute for the person who treats you.

  • Osteoarthritis ImprovesBioavailable formsGrade B

What is uncertain

Read off the same rows as above. Nothing here is added that the entry does not itself record.

  • Thin evidence: Depressive symptoms (grade C); Metabolic markers (grade C).
  • Studies disagree: Osteoarthritis pain (mixed agreement).
  • Caution with Anticoagulants (warfarin): Mild antiplatelet action — additive bleeding risk.

Interactions

Documented pairings with supplements and medicines. A medicine on this list is a conversation for whoever prescribes it.

  • Anticoagulants (warfarin)Caution

    Mild antiplatelet action — additive bleeding risk.

  • PiperineWorks together

    Piperine multiplies curcumin uptake ~20× — the classic pairing.

  • Omega-3Works together

    Complementary anti-inflammatory pathways for joints.

The evidence in words

What it is

Curcumin is the main polyphenol in turmeric. On its own it absorbs abysmally, so effective products pair it with piperine, phospholipids, or nanoparticle formulations.

How it works

Curcumin dampens NF-κB and other inflammatory signaling and has antioxidant activity, which underlies its joint and metabolic effects.

What the evidence shows

Decent evidence for reducing osteoarthritis pain (comparable to NSAIDs in some trials) and for modest antidepressant and metabolic effects, all contingent on using a bioavailable formulation. The sprawling anti-cancer literature is overwhelmingly preclinical and does not justify supplement claims.

How to use it

500–1,000 mg/day of curcuminoids from an absorption-enhanced product (with piperine, or a phospholipid/nano form). Plain turmeric powder is largely wasted.

Safety & interactions

Well tolerated; high doses can cause GI upset. It has mild antiplatelet action (additive with anticoagulants) and, via piperine, can raise levels of other drugs. piperine — Piperine multiplies curcumin uptake ~20× — the classic pairing. Omega-3 — Complementary anti-inflammatory pathways for joints. warfarin — Mild antiplatelet action — additive bleeding risk.

Bottom line

One of the better anti-inflammatory botanicals for joints and mood — but only in a bioavailable form. Skip if you're on blood thinners without clearing it.

How it is used

As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.

Standard
500–1,000 mg curcuminoids in an absorption-enhanced form.

Goes with

Entries that share this one's tags or conditions.

Sources

This entry lists no references of its own.

Last revised . A grade is this entry's reading of the evidence, not medical advice.