How much turmeric a day, and when to skip it

Since 2019 not a year has gone by without a food safety agency ruling on turmeric supplements. Italy made a warning on the label compulsory, the French agency set a maximum dose, the UK toxicity committee published a dedicated assessment, Canada imposed mandatory warning text and, in April 2026, the Brazilian agency changed the way curcuminoids in supplements are counted. While all that happened, turmeric stayed exactly what it was: a cheap spice used every day across half of Asia.

Both things are true at once, and that is the whole subject. The problem is not in the stew; it is in the gap between the milligrams in a teaspoon and the milligrams in a concentrated extract capsule. This article sets out the figures that are actually written down — the acceptable daily intake, the doses the agencies propose, what the label measures and what it does not — says when turmeric is best avoided, and explains why in the European Union no health effect can be attributed to it at all.

In short

• The curcumin acceptable daily intake set by EFSA, the European Food Safety Authority, is 3 mg per kilo of body weight per day: 180 mg for 60 kg, 210 mg for 70 kg and 240 mg for 80 kg.
• AESAN, the Spanish food safety and nutrition agency, concluded in 2020 that the figure also applies to curcumin in food supplements, not only to the E 100 colour additive.
• Cooking will rarely get you close: EFSA estimates that a normal diet supplies less than 7% of the acceptable intake.
• Of 125 supplements analysed in five countries, 36 (28.8%) recommended a daily dose above the acceptable intake, with a maximum of 2,850 mg.
• No health claim is authorised for turmeric in Regulation (EU) 432/2012. EFSA rejected the joint-function claim in 2017.
• The liver injury on record is rare and idiosyncratic, and is linked to supplements and enhanced-absorption formulations, not to the spice on the plate.
• Not recommended in pregnancy, breastfeeding, under 18, or with liver or biliary disease, nor alongside anticoagulants, anticancer drugs or immunosuppressants.

What curcumin is and why it is barely absorbed

Turmeric is the rhizome of Curcuma longa, a plant in the ginger family. What gives the colour, and what the regulations measure, are the curcuminoids: three related molecules, curcumin itself (75-80% of the total), demethoxycurcumin (15-20%) and bisdemethoxycurcumin (3-5%). The European Pharmacopoeia requires the dried drug to contain at least 2% curcuminoids, expressed as curcumin, plus 2.5% essential oil.

The feature that explains almost everything is that curcumin is poorly absorbed. It sits in class IV of the biopharmaceutical classification system, the one for compounds with low solubility and low permeability. In rats, oral bioavailability is below 1% and, after a 1 g per kilo dose, roughly 75% is excreted unchanged in the faeces. Hence the industry's two branches: extracts standardised to 95% curcuminoids, and formulations promising better absorption, from the piperine in black pepper to micellar complexes.

And hence the label trap, which is the heart of this article. One bottle can declare 600 mg "of turmeric" and another 400 mg "of curcumin", and those are not comparable numbers. In the turmeric tablets authorised as a medicine by AEMPS, the Spanish medicines agency, 100 mg of dry extract equals 10-15 mg of curcuminoids. It is the same problem this blog has already met with the activity units of digestive enzymes, the milligrams of elemental iron , the polyphenols in olive oil and the micrograms of vitamin D: the regulator measures one thing and the label prints another.

How much turmeric a day: the figures that are actually fixed

The only figure with regulatory standing is the acceptable daily intake. The joint FAO-WHO committee set it at 0-3 mg per kilo in 2004 and EFSA confirmed it in 2010 when re-evaluating curcumin as food colour E 100, starting from a no-observed-adverse-effect level of 250-320 mg per kilo in a reproductive toxicity study and applying an uncertainty factor of 100. In the same opinion, EFSA estimated that a normal diet supplies less than 7% of that intake and warned that children aged 1 to 10 may exceed it in some European countries at maximum colour use levels.

The decisive step came from AESAN, in a 2020 report by its scientific committee. Its conclusion is that the acceptable intake set for the additive also applies to curcumin as a supplement ingredient, though not to the sum of the three curcuminoids. In practice: 210 mg of curcumin a day for a 70 kg adult. The report adds three recommendations that rarely make it into marketing leaflets: do not give curcumin supplements to anyone under 18, do not use them in pregnancy or breastfeeding — curcumin and its metabolites pass into breast milk — and ask that the label state how much curcumin the product contains.

The French agency, ANSES, went one step further in 2022. Starting from the 180 mg a day that corresponds to a 60 kg adult, and subtracting what food already provides, it concluded that the dose from supplements should stay below 153 mg a day for that adult. It did so after its nutrivigilance scheme collected more than a hundred reports of adverse effects, fifteen of them hepatitis, and it made clear that the figure only holds for conventional formulations: those that boost bioavailability fall outside the calculation.

Put next to the kitchen, the contrast is the entire argument. A level teaspoon of turmeric powder weighs 2 to 3 grams; at the pharmacopoeia minimum that is some 40-60 mg of curcuminoids, and for ordinary powders the order of magnitude runs from 40 to 150 mg. In other words: cooking with turmeric every day leaves almost anyone below the limit, while a single capsule declaring 400 mg of curcumin exceeds the acceptable intake of a 60 kg adult and nearly triples the ceiling ANSES proposes.

Five checks with the label in your hand

1. Look for milligrams of curcuminoids, not of rhizome

This is the first division and the one that changes the answer most. "600 mg of turmeric" can mean 600 mg of powdered rhizome, carrying something like 12 to 30 mg of curcuminoids, or 600 mg of a 95% extract, carrying 570. If the label does not tell the two apart, nothing can be calculated. The plants and extracts aisle holds both kinds of product, and the real difference between them is not the brand: it is that line on the label.

2. Divide by your weight: 3 mg per kilo

With the curcuminoids per daily dose and your body weight, the sum takes ten seconds: 180 mg for 60 kg, 210 for 70, 240 for 80. If the label figure comes out above that, the product is not illegal, but it is above the reference EFSA and AESAN use, and above the more cautious ANSES ceiling. In a supplement shop, that division should be an ordinary conversation across the counter.

3. Do not assume pepper multiplies absorption

The number that circulates — a 2,000% increase — comes from a single 1998 study in eight volunteers, with six hours of sampling and control-group concentrations below the detection limit. In the same paper, the rat increase was 154%. A later trial in 30 volunteers, comparing 1,500 mg of curcuminoids with and without about 15 mg of piperine, found no significant difference. The UK toxicity committee treats the claim that piperine improves bioavailability as highly uncertain. In cooking, mixing turmeric and pepper costs nothing and does no harm; in a capsule, it is a promise you pay for.

4. With fat and inside the dish: the cheap route

Curcumin is fat-soluble, so the traditional way of using it — fried in fat rather than sprinkled at the end — makes physical sense. A splash of extra virgin olive oil at the start of the dish, turmeric with pulses or with rice, or the drink version with coconut milk achieve the same as the capsule with the slogan, for far less money and nowhere near the limit. If what you want is the daily habit, that is where it is.

5. When to skip it, and the signs that mean stop

The agencies agree more than you would think. Since late 2022 Italy has required labels to warn that the product is not recommended if liver function, the biliary system or gallstones are involved, that it should not be used in pregnancy or breastfeeding, that it should not be taken for long periods without medical advice, and that anyone on medication should consult a doctor. ANSES adds anticoagulants, anticancer drugs and immunosuppressants. Brazil, in 2026, also excluded people with gastric ulcers. And the signs that mean stopping and seeing a doctor are those of any liver injury: jaundice, dark urine, disproportionate tiredness, nausea or right-side pain.

Which format suits whom

The official figures, agency by agency

Four turmeric myths

"It is anti-inflammatory, and that is proven"

In the European Union you cannot say so. Regulation 432/2012 contains no authorised claim for turmeric, and in 2017 EFSA assessed a specific application on curcumin and normal joint function, with a proposed dose of at least 500 mg: of the sixteen human intervention studies submitted, fifteen were in patients with osteoarthritis or rheumatoid arthritis — not extrapolable to the general population — and the remaining one, in people with obesity, did not measure joint function. The panel concluded that a cause-and-effect relationship has not been established. Italy went further and in 2022 removed the three effects its supplements used to claim: antioxidant, joint and menstrual cycle.

"Without pepper it does nothing"

This is the myth that moves the most money, and it runs against our own shelf: Linverd sells turmeric capsules with pepper and turmeric powder with black pepper. The evidence behind the multiplier is a 1998 study in eight people, and the most recent trial, in thirty, found no difference. In the market piperine is everywhere: of 125 supplements analysed, 23 contained black pepper extract and 58 some absorption enhancer. As a spice blend it is good cooking. As a price argument it does not hold.

"It is a spice, it cannot do harm"

The spice indeed is not implicated: the Brazilian agency itself clarified in 2026 that the risk does not concern turmeric in everyday cooking. What is documented is liver injury with supplements. The US DILIN network identified ten cases among 1,798 high-confidence ones: nine hepatocellular, with a median latency of 86 days, five hospitalisations and one death from acute liver failure. Seven of the ten patients carried the HLA-B*35:01 allele, at an allele frequency of 0.450 against 0.056-0.069 in reference populations. Nobody knows whether they carry it before taking the product, which is why the UK committee calls it idiosyncratic.

"More milligrams must be better"

The market is heading that way and the data are not. In the analysis of 125 supplements from five countries, 36 (28.8%) recommended a dose above the acceptable intake, the highest declared was 2,850 mg a day, and for 44 products the maximum dose could not even be calculated because the label did not give the numbers. On top of that, 26 contained high-bioavailability complexes — precisely the formulations ANSES leaves out of its calculation and the COT asks to assess separately. Raising the dose does not improve what has not been demonstrated, and it does move the product into the zone where agencies ask for caution.

The shopping list

For cooking, the spice: turmeric in the spices aisle, as loose powder if you want to start with 100 grams, in a 200-gram jar for daily use, in a small 30-gram format to try, or fresh in the vegetables aisle when it is in. For the drink, the coffee and teas aisle, with the latte mix with coconut milk, and the drinks aisle with turmeric kombucha.

If what you want is a supplement, it lives in plants and extracts: 600 mg turmeric capsules, 100-gram powder with black pepper, the concentrated curcumin extract — the one that forces you to do the division — and the gummies, which AESAN does not recommend under 18. Around them, the digestive system, the immune system, antioxidants, bones and joints and superfoods.

And what goes with a turmeric dish: oils and vinegars for the fat, pulses and rice for the stew, seasonal vegetables, fruit, dried fruit and nuts, ground black pepper and the rest of the pantry. If you would rather not decide every week, there are organic baskets, and it is worth checking the offers before closing the order. To keep reading, the health blog; and vitamins and minerals or the nervous system aisle hold the actives we have written about before.

Do you need turmeric capsules?

For most people, no. It is awkward to say in a shop that sells them, but this is what is on the table: no authorised health claim in the European Union, an application rejected by EFSA in 2017 and, in the best-studied area — knee osteoarthritis — meta-analyses finding pain improvements of 0.59 to 3.30 points on the visual scale, but with a methodological quality that a critical review of seven of those reviews rated critically low for 37 of 48 outcomes, with none rated high.

That does not mean there is nothing there. It means that, if you want to try, the right order is the opposite of the usual one: first the spice in the dish, which is cheap and has no safety ceiling in sight; and if you still want a capsule, read the milligrams of curcuminoids, divide by your weight and set a deadline — eight or twelve weeks — to decide whether to carry on. What we recommend to nobody is the highest-dose bottle "because it goes further", nor any turmeric supplement to someone with liver or biliary problems, on anticoagulants, or pregnant. In those cases this shop's answer is not to take it home.

Where to buy turmeric in Barcelona and Sant Cugat

Linverd Market has three shops, all of them in Spain, and in all three you can see, smell and weigh the turmeric before buying it:

• Provença 242, 08008 Barcelona (Eixample, between Balmes and Enric Granados).
• Còrsega 78, 08029 Barcelona (Eixample, near Sants station).
• Antoni Bell 2, 08174 Sant Cugat del Vallès (Volpelleres, next to Volpelleres station).

Three things happen at the counter and not on a screen. The first is the fresh rhizome: it is perishable, you pick it with your hand and your nose, and no photograph tells you whether it is firm. The second is loose weight: you buy 100 grams to try instead of a 200-gram jar you may regret, and no warehouse can do that for you. The third is the one that saves everyone the most time: bring in the bottle you already have at home, find the curcuminoid line together and divide by your body weight right there. If that line is missing, we will say so. And if someone cooks with turmeric every day, we will probably tell them they do not need the capsule — the advice that sells nothing and the one we are most often right about. To ask before coming, the phone is +34 683 118 961 and the email is linverd@linverd.com.

Frequently asked questions

How much turmeric a day is safe?

The European reference is the curcumin acceptable daily intake set by EFSA, the EU food safety authority: 3 mg per kilo of body weight per day. That is 180 mg for a 60 kg adult and 210 mg for a 70 kg adult. AESAN, the Spanish food safety agency, says the figure also applies to curcumin in food supplements, not only to the colour additive.

Does turmeric damage the liver?

Turmeric in cooking is not implicated. What has been documented are rare, idiosyncratic cases linked to supplements: ten cases in the US DILIN network, with five hospitalisations and one death, and a median latency of 86 days. Seven of those ten patients carried the HLA-B*35:01 allele.

Do you need black pepper to absorb curcumin?

The famous 2,000% increase comes from a 1998 study with eight volunteers and six hours of sampling. A later trial in 30 volunteers, comparing 1,500 mg of curcuminoids with and without about 15 mg of piperine, found no significant difference. In the kitchen pepper is free; in a capsule it is a promise you pay for.

Does turmeric help knee pain?

Meta-analyses find pain reductions of 0.59 to 3.30 points on the visual scale, but a critical review of seven of them rated 37 of 48 outcomes as critically low quality. EFSA rejected the joint-function claim in 2017 because no cause-and-effect relationship had been established.

Can children or pregnant women take turmeric supplements?

No. AESAN does not recommend curcumin supplements for anyone under 18 and considers their safety in pregnancy and breastfeeding unestablished, because curcumin and its metabolites pass into breast milk. That includes gummies, which are the format children reach for first.

Is fresh turmeric better than powder?

For cooking, both work. The fresh rhizome is grated and brings aroma; the powder is easier and more concentrated per gram. The order of magnitude does not change: a teaspoon of powder provides tens of milligrams of curcuminoids, far below the dose in a concentrated capsule.

Where can I buy organic turmeric in Barcelona or Sant Cugat?

At the three Linverd Market shops: Provença 242 and Còrsega 78 in Barcelona, and Antoni Bell 2 in Sant Cugat del Vallès. You will find fresh rhizome, loose powder so you can buy 100 grams and try it, packaged powder and capsules. The phone number is +34 683 118 961.

What to do with all this

Turmeric does not need defending or attacking: it needs a number. That number is 3 mg of curcumin per kilo of body weight per day, and most people stay under it without thinking because they cook with the spice. Anyone moving to a capsule has to do one multiplication and one division, and is entitled to a label that provides the figures for both. Until that is the norm, the safest and cheapest option remains the one that has worked for two thousand years: the rhizome, the fat and the heat.

To follow the thread of actives where the regulator has already set the number, this blog has how much olive oil per day, iron and tiredness — worth noting, since curcumin chelates iron, which is why AESAN rules it out under 18 —, how much vitamin D per day and ashwagandha and cortisol, the other ayurvedic classic. And for which chemical form suits which case, the magnesium guide.

This article is for information only and does not replace advice from a healthcare professional. Food supplements are not medicines and should not be used as a substitute for a balanced diet. If you are pregnant or breastfeeding, have liver or biliary disease, take medication — particularly anticoagulants, antineoplastics or immunosuppressants — or are due to have surgery, consult your doctor or pharmacist before taking turmeric as a supplement. Stop using it and seek medical attention if jaundice, dark urine, persistent nausea or unexplained tiredness appear.