Curcumin クルクミン
The yellow compound found in turmeric.
In Japan: Foods with Function Claims notifications
Functions claimed (counted from notifications with this ingredient alone)
| Function | Notifications |
|---|---|
| Liver function | |
| Memory and cognitive function | |
| Fatigue | |
| Walking ability and exercise | |
| Knees, lower back, and joints | |
| Sleep quality |
Examples of notified claims (our translation)
This product contains highly absorbable curcumin. The curcumin in this product has been reported to lower slightly high values, within the healthy range, of the blood liver enzyme ALT in healthy people. The blood ALT level is one indicator of liver health. It has also been reported to reduce tiredness upon waking.
This product contains curcumin. Curcumin has been reported to have the function of maintaining memory (the ability to remember and recall actions and decisions in daily life) and attention (the ability to sustain attention and continue a single action), parts of cognitive function that decline with age.
This product contains curcuminoids. The curcuminoids in this product have been reported to have the function of reducing temporary tiredness after exercise.
Cautions written in the notifications (most common)
- “If you are taking medication to treat a liver or biliary disease, or medication that is easily metabolized by the liver, consult your doctor or pharmacist.” (7 notifications)
- “If you are taking anticoagulants or antiplatelet drugs, avoid taking this product.” (3 notifications)
- “If you are taking blood coagulation inhibitors (such as warfarin), do not take this product.” (2 notifications)
- “This product does not improve abnormal values on liver function tests. If your values are abnormal, see a medical institution.” (5 notifications)
Under Foods with Function Claims, the company notifies the Consumer Affairs Agency of the scientific evidence on its own responsibility; the government does not review or approve it. You can look up each product's notification by the number on the package in the Consumer Affairs Agency's database (Japanese).
In the EU: the register of health claims
Claim not authorised in the EU
- The curcumin claim "helps support joint function" was not authorised (submitted in 2016).
In the EU, only health claims whose evidence has been assessed by the European Food Safety Authority (EFSA) and authorised by the European Commission may be used on food. “Not authorised” means the evidence for that claim was not established under EU standards — not that the ingredient is dangerous.
What the US NIH says
- There is early research on knee osteoarthritis and fatty liver, but not enough evidence to say it helps for health purposes.
- Liver injury has been reported with products designed for higher absorption.
Sources: NCCIH "Turmeric"
Find products PR
These are Japanese online shops (affiliate links).
Example of a product notified with this ingredient
セラクルミンＷ （株式会社セラバリューズ）
Food with Function Claims, notification No. H418. Chosen from products sold on Rakuten whose names match a current notification to the Consumer Affairs Agency, picking one with many reviews.
See on Rakuten (theravalues)See on Amazon.co.jpThis database does not guarantee any product's effect. For Foods with Function Claims, check the notification number on the package; for Foods with Nutrient Function Claims, check the amount per daily serving.
Compare “クルクミン サプリ” products on RakutenCompare “クルクミン サプリ” products on Amazon.co.jpOther ingredients in the same categories
This page is a translation of our Japanese page; if they differ, the Japanese page is the reference.