Reviewed records available

Turmeric

Curcuma longa

A review of short knee-osteoarthritis trials found a pain signal for turmeric or curcumin products. The products were not one thing: culinary turmeric, concentrated curcuminoids, piperine combinations, and enhanced-absorption formulations should not be treated as equivalents.

Evidence snapshot reviewed October 16, 2026

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Botanical identity

Which plant this profile means

This profile is tied to Curcuma longa. The public evidence card keeps food, extracts, co-ingredients, and bioavailability systems separate.

Scientific name
Curcuma longa
WCVP taxon ID
235249
Atlas record
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Preparation boundaries

Same plant, different exposure

These forms stay separate in the evidence bank. A result for one cannot be copied onto the others.

Food or culinary use

rhizome · Taken by mouth

Culinary turmeric is not equivalent to concentrated curcuminoids, enhanced-bioavailability formulations, or products combined with piperine.

Mixed preparations

rhizome-derived turmeric or curcuminoids · Taken by mouth

Pooled turmeric and curcumin trials span materially different extracts, curcuminoid contents, co-ingredients, and bioavailability systems.

Research-bot status

Some evidence cards are public. The rest of the queue isn’t.

The reviewed cards below cleared a separate publication check. The remaining candidate extractions stay private until their source, wording, and preparation match are reviewed.

Sources in review
2
Possible claims found
2
Still awaiting review
1
Blocked source
0

Research connections

What this ingredient has been studied around

Knee osteoarthritis

A reviewed, preparation-specific evidence card is published for this source.

Reviewed evidence

1 source-linked record

Evidence synthesis Promising, with limits 10 trials with 786 people who had knee osteoarthritis

Turmeric and curcumin products for knee pain: positive short-term results, mixed products

The pooled trials favored turmeric or curcumin products over placebo for short-term knee pain. The headline is simpler than the products: the studies used different extracts, curcuminoid contents, co-ingredients, and absorption strategies. The review itself said heterogeneity and other limitations leave the best formulation, dose, and method unresolved.

What was studied
A mixed set of Curcuma longa and curcumin products, including materially different extracts and bioavailability approaches
Setting
Mixed treatment settings
Why it ranks here
Ten randomized trials produced a positive short-term pain signal, but product heterogeneity prevents a clean conclusion about culinary turmeric or any particular retail supplement.
Limits and cautions
  • The studies lasted four to six weeks for the pooled treatment outcomes.
  • Turmeric powders, curcumin extracts, piperine combinations, and enhanced-bioavailability products are not interchangeable.
  • The review reported study limitations and heterogeneity.
  • The optimal dose and administration method remain unresolved.
  • A noninferiority-style comparison with NSAIDs does not prove identical benefits, risks, or suitability.

This record does not recommend replacing osteoarthritis care or an indicated medicine. Concentrated products can have a different interaction and safety profile from turmeric used as food.

Profile sources

Read the source material