Turmeric
Curcuma longa L.Zingiberaceae // rhizome
Overview
Plant parts
rhizome
Known constituents
curcuminoids, turmerones
Research corpus coverage
Chemistry notes
- CHEMISTRY: Relevant reported constituents include curcuminoids; turmerones; constituent presence alone does not establish clinical efficacy.
Uses & Evidence
Traditional / historical use
Documented traditional use — not a claim of established efficacy.
TRADITIONAL: Turmeric has been used for inflammation; digestive complaints; skin disorders; this records historical/traditional use and does not establish efficacy.
MODERATE · evidence synthesis/fact sheet · NCCIH Herbs at a Glance
Modern evidence
EVIDENCE: For the major use set (inflammation; digestive complaints; skin disorders), the evidence assessment is limited/mixed: Limited/mixed meta-analyses for osteoarthritis; bioavailability and formulation heterogeneity limit inference.
MODERATE · systematic review/meta-analysis · NCCIH Herbs at a Glance
Mixed findings, product heterogeneity, or indirect evidence are preserved in the detailed profile.
Preparation
Forms used traditionally
A listed form does not imply it suits every plant part, or that one preparation is interchangeable with another — see the plant’s own notes below.
PREPARATION: The medicinal material is rhizome; traditional and modern forms include decoction, tincture, powder/capsule, standardized extract. No dose or potency is specified.
MODERATE · regulatory monograph · EMA European Union herbal monographs and list entries
Preparation-specific evidence should not be generalized across extracts, teas, oils, or whole herb.
Safety
Cats & dogs
- High risk
Ground turmeric spice preparations have been reported to be fraudulent and/or contaminated with lead, creating a product-quality toxicity concern.
Contamination · ORAL · ground turmeric spice · MODERATE · veterinary_manual · Herbal Medicine in Veterinary Patients - Therapeutics
- Caution
High doses of turmeric may cause diarrhea, flatulence, bloating, headache, or nausea; turmeric may also increase bleeding risk when combined with NSAIDs.
Interaction · OTHER · turmeric product · MODERATE · veterinary_manual · Herbal Medicine in Veterinary Patients - Therapeutics
Additional safety notes (general, unstructured)
Free-text safety notes carried from their source — not broken out by species, route, or hazard type, and not equivalent to the structured records above. Each note names the kind of source it came from.
SAFETY: Major issues include GI upset; gallbladder stimulation; rare clinically apparent liver injury, especially enhanced-bioavailability products. Contraindications/cautions include Biliary obstruction or gallstones; liver disease caution.
HIGH · observational/case series and expert review · LiverTox: Herbal and Dietary Supplements
SAFETY: Clinically relevant interaction concerns include Potential additive anticoagulant and glucose-lowering effects; piperine formulations may alter drug exposure.
MODERATE · observational/case series and expert review · LiverTox: Herbal and Dietary Supplements
Some interactions are theoretical or based on case reports/pharmacokinetics rather than outcome trials.
SAFETY: Pregnancy/lactation reference: Insufficient medicinal-dose pregnancy/lactation safety data.
MODERATE · regulatory monograph or evidence synthesis · NCCIH Herbs at a Glance
Absence of evidence is not evidence of safety.
Ground turmeric spice preparations have been reported to be fraudulent and/or contaminated with lead, creating a product-quality toxicity concern.
MODERATE · veterinary_manual · Herbal Medicine in Veterinary Patients - Therapeutics
The concern applies to contaminated or fraudulent preparations rather than necessarily to authentic turmeric.
High doses of turmeric may cause diarrhea, flatulence, bloating, headache, or nausea; turmeric may also increase bleeding risk when combined with NSAIDs.
MODERATE · veterinary_manual · Herbal Medicine in Veterinary Patients - Therapeutics
Species and route were not specified; curcumin was named as a studied constituent, not explicitly as a toxic constituent.
Preparation × species risk matrix
Unknown means insufficient evidence was located — not that a form is safe.
Cats
- whole herbHigh risk
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- smoke/combustionUnknown
- tea/infusionUnknown
Dogs
- whole herbHigh risk
- tinctureCaution
- concentrated extractUnknown
- essential oilUnknown
- glyceriteUnknown
- infused oilUnknown
- salveUnknown
- smoke/combustionUnknown
- tea/infusionUnknown
Identity
- Possible adulterantSaffron
Turmeric material/colorants are documented botanical adulterants of powdered saffron.
Why it matters: Adulteration dilutes or replaces Crocus stigmas and invalidates identity, composition, and dosing.
HIGH · Detection of botanical adulterants in saffron powder
- Synonym
GBIF resolves Curcuma domestica Valeton as a synonym of Curcuma longa. The older name still appears in herbal and taxonomic literature.
HIGH · GBIF Species Match API
Botanical synonym
Curcuma domestica Valeton
Taxonomic identity note
- Turmeric is treated here as Curcuma longa L. in the family Zingiberaceae; recorded older names include Curcuma domestica Valeton.
Sources
Research records are source-linked but may not yet be editorially reviewed.
veterinary_manual
- NCCIH Herbs at a Glance3 claims
NCCIH fact sheet
NIH LiverTox monograph
- Plants of the World Online1 claim
botanical taxonomy database
EMA monograph
WHO monograph
- GBIF Species Match API1 claim
authoritative taxonomic database
peer-reviewed food-authentication paper