Hydroxytyrosol ヒドロキシチロソール

In Japan: Foods with Function Claims notifications

Functions claimed (counted from notifications with this ingredient alone)

Examples of notified claims (our translation)

Cautions written in the notifications (most common)

• “If you are taking medication for high blood pressure (antihypertensives) or diabetes (blood sugar-lowering drugs), avoid taking this product.” (4 notifications)
• “No interactions have been confirmed between the functional ingredient, olive-derived hydroxytyrosol, and medications or other functional ingredients.” (2 notifications)
• “However, if you are taking medication for high blood pressure (antihypertensives) or diabetes (blood sugar-lowering drugs), consult your doctor or pharmacist about taking this product.” (2 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

EU-authorised claim

• The claim "olive oil polyphenols contribute to the protection of blood lipids from oxidative stress" is authorised. However, it can be used only for olive oil, on the condition that it contains at least 5 mg of hydroxytyrosol and related compounds per 20 g and that 20 g is eaten per day.
• Claims such as "maintains HDL cholesterol" were not authorised.

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.

Other ingredients in the same categories

• Ellagic acid
• Tea catechins
• Barley beta-glucan
• HMPA
• Alpha-linolenic acid
• Pine bark procyanidins