Turmeric (Curcumin)
Curcuma longa
Botanical extract with anti-inflammatory properties. No FDA RDI; declared with † symbol. Standardized to 95% curcuminoids.
FDA Reference Data
About Turmeric (Curcumin)
Turmeric (Curcuma longa) is a botanical extract containing curcuminoids (curcumin, demethoxycurcumin, bisdemethoxycurcumin) as the active compounds. As a botanical, it has no FDA-established RDI and is declared with the † symbol on Supplement Facts labels. Standardized extracts typically contain 95% curcuminoids. Bioavailability is poor unless paired with piperine (black pepper extract) or formulated as liposomal / micellar preparations. Typical dose: 500-1,000 mg curcuminoids per day.
Common Supplement Forms
Frequently Asked Questions
How do I declare turmeric on a Supplement Facts label?
Declare as "Turmeric (Curcuma longa) Root Extract [amount] mg†" or "Curcumin (from Turmeric) [amount] mg†". The † symbol indicates no established Daily Value. The legend "Daily Value not established" must appear at the bottom of the Supplement Facts panel. If using a standardized extract, declare the standardization (e.g., "standardized to 95% curcuminoids") in the ingredient statement or other labeling.
Why is piperine often added to turmeric supplements?
Piperine (from black pepper extract, branded as BioPerine) inhibits glucuronidation in the liver and gut, increasing curcumin bioavailability by approximately 20-fold. Without an enhancer, plain curcumin has <1% oral bioavailability. Most clinical studies showing efficacy use piperine or other bioavailability enhancers.
Is turmeric safe with blood thinners?
Turmeric / curcumin has mild antiplatelet activity and may enhance the effect of blood thinners (warfarin, aspirin, clopidogrel). Supplements labels should include a "Consult your healthcare provider if taking blood thinners" statement. This is a label warning rather than a 21 CFR 101.36 requirement.
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