High-polyphenol oils

Oilive primer

High-polyphenol olive oil, demystified.

Polyphenols are naturally occurring plant compounds that give extra-virgin olive oil its peppery throat-catch and grassy bite. We help you find oils with verified high counts — without the marketing fluff.

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What are polyphenols?

Polyphenols are antioxidant compounds found in olives. The dominant ones in extra-virgin olive oil are oleocanthal, oleacein, hydroxytyrosol and tyrosol. They are responsible for the peppery sting at the back of your throat when you taste a fresh, robust oil.

Reading the number

Polyphenol content is reported in mg/kg (milligrams per kilogram of oil). For context — these are general norms, not promises about a specific brand:

Standard EVOO≈ 100–250 mg/kg

High polyphenol≈ 250–500 mg/kg

Very high polyphenol≈ 500–800 mg/kg

Exceptional800+ mg/kg

Reaching 250 mg/kg of hydroxytyrosol-and-derivatives is the threshold the EU permits producers to mention on the label (Reg. 432/2012, “contributes to the protection of blood lipids from oxidative stress”). We surface that fact; we don’t embroider it.

Why people seek them out

Health-conscious cooks tend to prefer high-polyphenol oils for everyday raw use — drizzled on bread, finishing pasta, dressing salads — because the antioxidants stay intact when not heated. Polyphenols also contribute to the oil’s shelf-life, since they slow oxidation in the bottle.

Oilive does not make medical claims. Olive oil is food, not medicine.

What to look for on the bottle

A harvest year. Polyphenols decline over time. The most recent harvest is best.
Single variety. Coratina, Picual, Moraiola and Koroneiki are typically polyphenol-rich.
Early harvest. Olives picked greener generally yield higher polyphenols.
Dark glass bottle. Light degrades polyphenols. Avoid clear bottles.
A lab number, sourced. If it’s claimed, it should be backed by an independent test for that harvest.