Is turmeric the same as curcumin?

No. Curcumin is one group of compounds in turmeric. Turmeric is the whole rhizome, which also contains the volatile oil and other constituents.

Does black pepper make turmeric better?

Black pepper raises curcumin absorption, which is exactly why it appears in some of the liver injury reports. A pinch of pepper in a curry is a very different matter from a daily supplement that combines high-dose curcumin with piperine.

Is it safe to cook with turmeric every day?

Culinary use is long-standing and the doses are modest. The cases of concern relate to supplements and daily high-dose drinks.

Can I take it with blood-thinning medication?

Please speak to your GP or pharmacist first. The EarthWise safety guidance asks anyone taking anticoagulants to check before using MenoEase.

Is it safe in pregnancy?

Safety has not been established, so it is not recommended in pregnancy or breastfeeding.

Turmeric: What It Is, How It Works, and When to Use It

Sarah Burt

Oct 14

7 min read

Turmeric (Curcuma longa) is the bright orange rhizome of a tropical plant in the ginger family, used for thousands of years as a spice and in Ayurvedic and traditional Chinese medicine. The EU herbal committee recognises it for traditional use in mild digestive problems, and recent safety reviews have raised questions about very high-dose, high-absorption curcumin supplements. It is one of the five herbs in the EarthWise MenoEase Day formula.

Uprooted Turmeric with tangled roots and dried leaves леж on dark gravel, sunlit and still.

What it is

Turmeric is a perennial in the ginger family (Zingiberaceae) that is native to South Asia and now grown across the tropics. The part used is the rhizome, the thick underground stem, which is boiled, dried and ground to give the familiar yellow-orange powder. It is a staple of curries and golden milk, and it has long been used to colour food and fabric.

In Ayurveda, turmeric (called haridra) is used in cooking, in preparations for the skin and digestion, and in ceremony. Traditional Chinese medicine uses it as well, under the name jiang huang. In Western herbal medicine it is mostly used for digestion, which is also the use recognised in the EU monograph.

Kitchen turmeric, a herbal preparation of the whole rhizome and a concentrated curcumin supplement are three quite different things. The difference matters because most laboratory and clinical research uses concentrated curcumin, and most of the safety concerns relate to it as well.

A buyer's note worth reading. Look for the Latin name Curcuma longa, the part used (rhizome), and the form: whole-rhizome powder or tincture, or a curcumin extract. Be wary of products that add black pepper extract (piperine) to raise curcumin absorption, and of very high doses of curcuminoids, for reasons covered in the safety section below.

The active compounds

Turmeric rhizome contains curcuminoids (curcumin and related compounds, which give the yellow colour), a volatile oil rich in turmerones, and starch, resins and other plant compounds. The EU assessment gives a maximum monograph intake of 4 g of rhizome a day, which corresponds to about 209 mg of curcuminoids, so the whole rhizome contains a few percent curcuminoids by weight.

The main proposed mechanism: anti-inflammatory signalling. In cell and animal studies, curcumin interacts with many inflammatory pathways. This has made it one of the most-studied plant compounds. It has also made it a poor example of a clean mechanism, because curcumin appears active in many laboratory tests that do not predict benefit in people.

Absorption. Curcumin is poorly absorbed from the gut, and the body clears it quickly. One case report puts turmeric's own bioavailability at around 1%, and notes that piperine from black pepper has been reported to raise curcumin absorption many times over. Modern supplements often use piperine, phospholipids or other tricks to increase absorption, which is part of the reason for the safety discussion below.

Bile. Turmeric is traditionally described as a stimulant of bile flow, and the EU monograph advises against it in bile duct obstruction, gallstones and other biliary disease.

How it is traditionally used

The EU herbal committee (HMPC) adopted a monograph on turmeric rhizome that recognises it as a traditional herbal medicine for the relief of mild digestive problems, such as a feeling of fullness, slow digestion and flatulence. The committee judged its effectiveness to be plausible, based on long-standing use, and said the clinical evidence was insufficient for firm conclusions.

The traditional preparations in the monograph include the powdered rhizome (0.5 to 1 g, two to three times daily), a tea (0.5 to 1 g in 150 ml of boiling water, two to three times daily), and a tincture (1:10 in 70% ethanol, 0.5 to 1 ml three times daily), plus some dry extracts. It is for adults only, and it advises seeing a doctor or practitioner if symptoms last longer than two weeks.

Sarah includes turmeric in MenoEase Day, with red clover, sage, shatavari and rosemary. That formula is designed as a day-and-night protocol for the menopause years, using herbs with a long history of traditional use.

What the research shows

Turmeric is one of the most researched spices, and it is easy to say too much about it. Here is how it grades.

Traditional evidence: mild digestive problems. The EU monograph rests on traditional use. The committee found the claim plausible and the clinical data insufficient, and I think that is a fair summary.

Mixed evidence: concentrated curcumin in other conditions. Many trials have tested curcumin extracts, often with absorption enhancers, in conditions such as osteoarthritis. These are a different product from kitchen turmeric or a tincture, and reviewers have repeatedly pointed to the variable quality of the trials. I have not graded those trials in detail here, so I make no claims about them.

Safety evidence: liver injury. This is the most important newer finding. The EU committee's periodic review of the monograph (adopted in November 2025) looked at reports of liver injury linked to turmeric. It cited a review of 37 cases of liver injury, with 23 of those identified through a systematic review, and a pathology series of 11 patients with turmeric-supplement hepatitis, of whom eight were rated probable and three possible by a standard causality scale. In nearly all cases other medicines or supplements were also being taken. Where product details were known, the products were high in curcuminoids, contained black pepper extract, or both, and intakes were above the monograph's doses. The assessor could not establish causality but concluded that the data suggest a risk of liver toxicity with high-dose, high-bioavailability curcumin formulations. No liver toxicity has been reported at the monograph's doses.

A separate case report describes a woman who developed severe jaundice after five months of a daily homemade "wellness shot" containing turmeric and black pepper. Her liver tests returned to normal after she stopped it and took a course of steroids. Such reports have also linked susceptibility to a particular genetic variant (HLA-B*35:01), so some people may be at greater risk than others.

Sarah's clinical perspective

I use turmeric in MenoEase Day as a warming, bitter-leaning digestive herb that works alongside red clover, sage, shatavari and rosemary. I choose it as a whole-herb tincture at a traditional strength, and not as a concentrated curcumin extract.

I am careful with anyone who has gallstones or a bile duct problem, because turmeric, rosemary and dandelion all stimulate bile flow. I also ask about anticoagulants and other prescribed medicines, and about other liver-active supplements the person is taking.

Practical guidance

Dose. There is no trial-tested dose for a tincture. The EU monograph gives traditional amounts for adults of 0.5 to 1 g of powdered rhizome two to three times daily, or 0.5 to 1 ml of a 1:10 tincture three times daily. These are traditional amounts, not a dosing instruction for any particular product.

Format. Whole-rhizome powder, tea or tincture are the traditional forms. A tincture contains more of the volatile oil and the curcuminoids than a plain tea, because curcuminoids dissolve poorly in water.

Time to effect. The monograph advises seeing a doctor or practitioner if symptoms last longer than two weeks. There is no established timeline for effects.

Timing. Traditionally with or after meals, in line with its digestive use.

What it does not replace. Turmeric does not replace medical assessment of persistent digestive symptoms, jaundice or pain under the right ribs.

For how to take the EarthWise formula specifically, the dose and full safety information are on the product page.

Common questions

Is turmeric the same as curcumin? No. Curcumin is one group of compounds in turmeric. Turmeric is the whole rhizome, which also contains the volatile oil and other constituents.
Does black pepper make turmeric better? Black pepper raises curcumin absorption, which is exactly why it appears in some of the liver injury reports. A pinch of pepper in a curry is a very different matter from a daily supplement that combines high-dose curcumin with piperine.
Is it safe to cook with turmeric every day? Culinary use is long-standing and the doses are modest. The cases of concern relate to supplements and daily high-dose drinks.
Can I take it with blood-thinning medication? Please speak to your GP or pharmacist first. The EarthWise safety guidance asks anyone taking anticoagulants to check before using MenoEase.
Is it safe in pregnancy? Safety has not been established, so it is not recommended in pregnancy or breastfeeding.

Where turmeric appears in the EarthWise range

Turmeric is one of the five herbs in MenoEase Day and Night, in the Day formula alongside Red Clover, Sage, Shatavari and Rosemary.

If you are not sure which formula fits, the EarthWise health quiz is the best place to start. Full safety information is on each product page.

When to seek professional support

Turmeric is generally well tolerated at culinary and traditional doses, with mild dry mouth, wind and stomach irritation the main reported effects. Check with a practitioner first in these situations:

Gallstones, bile duct obstruction or liver disease. The monograph advises against use, because turmeric stimulates bile secretion.
Concentrated curcumin or black pepper supplements. The liver injury reports relate to high-dose, high-absorption products. If you take one and develop jaundice, dark urine, pale stools, itching or unusual tiredness, stop and see a doctor promptly.
Blood-thinning medication. Speak to your GP or pharmacist first.
Other liver-active medicines or supplements. Check before combining.
Pregnancy and breastfeeding. Not recommended, as safety has not been established.
Under 18. The monograph does not recommend use below this age.

Sarah Burt is a registered naturopath, medical herbalist and iridologist with 25+ years of clinical experience. All EarthWise tonics are formulated by Sarah based on her clinical protocols.

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This article is for informational purposes only and is not intended to diagnose, treat or cure any health condition. Always consult a qualified health practitioner before making changes to your health regimen.