Turmeric (Curcuma longa)
Quick answer: Turmeric (Curcuma longa) is a botanical ingredient. The whole rhizome behind curcumin, a kitchen root used daily in Indian households long before it was standardised into capsules. Follow the product label. Whole-root turmeric is traditionally cooked with fat and a little black pepper, which is also how supplements pair it.
- Role
- Botanical
- Origin
- Grown in the wet heat of Kerala, Tamil Nadu and Andhra Pradesh, lifted after the monsoon when the rhizome has swelled underground.
- Form
- Dried Curcuma longa rhizome, curcuminoid content confirmed by supplier Certificate of Analysis (CoA)
- Evidence
- Moderate, The trial evidence sits with standardised curcumin extracts rather than the culinary root, and mostly in joint comfort. Whole-root turmeric is a few percent curcuminoids, so it is not the same thing as the extract that was studied.
- Citations
- 2 peer-reviewed references
Worth knowing
Turmeric can add to the effect of blood thinners and may worsen reflux or gallbladder discomfort in some people. Worth a word with a doctor if any of those apply.
Origin
Grown in the wet heat of Kerala, Tamil Nadu and Andhra Pradesh, lifted after the monsoon when the rhizome has swelled underground.
Sourcing
Turmeric passes through long trading chains, and adulteration with colourants and lead chromate has been documented in some markets. We strive to follow the trail as far as it goes: growing region, harvest season, heavy-metal and pesticide screening on the batch, and a curcuminoid assay that matches the label rather than an estimate. Where a supplier cannot document that, we say so rather than dress it up.
How it works
Turmeric root contains curcuminoids, of which curcumin is the most studied, alongside turmerones and other compounds present in the whole rhizome. Raw root is roughly 2 to 5% curcuminoids, so whole-root powder behaves very differently from a standardised extract, and most clinical research is done on the extract rather than the culinary root.
How to take it
Follow the product label. Whole-root turmeric is traditionally cooked with fat and a little black pepper, which is also how supplements pair it.
Form & standardisation
Dried Curcuma longa rhizome, curcuminoid content confirmed by supplier Certificate of Analysis (CoA)
Research
- Hewlings & Kalman 2017 · Foods, Review of turmeric and curcumin chemistry, noting whole rhizome is only a few percent curcuminoids and that absorption is the limiting factor.
- Cohen et al. 2017 · Sci. Total Environment, Field investigation traced lead chromate adulteration of turmeric in parts of the supply chain, which is why batch heavy-metal testing matters.
Frequently asked questions
What is Turmeric?
Turmeric (Curcuma longa) is a botanical ingredient. The whole rhizome behind curcumin, a kitchen root used daily in Indian households long before it was standardised into capsules.
How does Turmeric work?
Turmeric root contains curcuminoids, of which curcumin is the most studied, alongside turmerones and other compounds present in the whole rhizome. Raw root is roughly 2 to 5% curcuminoids, so whole-root powder behaves very differently from a standardised extract, and most clinical research is done on the extract rather than the culinary root.
How should I take Turmeric?
Follow the product label. Whole-root turmeric is traditionally cooked with fat and a little black pepper, which is also how supplements pair it.
Where is Clekina's Turmeric sourced?
Turmeric passes through long trading chains, and adulteration with colourants and lead chromate has been documented in some markets. We strive to follow the trail as far as it goes: growing region, harvest season, heavy-metal and pesticide screening on the batch, and a curcuminoid assay that matches the label rather than an estimate. Where a supplier cannot document that, we say so rather than dress it up.