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Phytochimie et composés bioactifs

Epicatechin

Catechin antioxidant isomer abundant in dark cocoa and black chocolate.

Definition

Epicatechin is a catechin isomer, a flavonoid belonging to the flavan-3-ol class, differing structurally from catechin by the spatial configuration of an asymmetric carbon atom.

How it works

Epicatechin is the isomeric form of catechin, meaning it has the same chemical formula but a different three-dimensional structure. This minor structural difference creates variations in bioavailability and biological effects. It is particularly abundant in dark cocoa and black chocolate, where it can represent up to 40% of total polyphenols. Epicatechin has beneficial effects on blood flow and endothelial function. It is better absorbed than catechin in certain digestive conditions.

Role

It improves vasodilation and cardiovascular function while exercising a powerful antioxidant action.

Examples

  • Dark cocoa
  • Black chocolate (70% and above)
  • Green tea
  • Red raisins
  • Berries
  • Peanuts
  • Pistachios

Recommendations

Consume black chocolate containing at least 70% cocoa to maximize epicatechin intake. A portion of 30-40 grams per day may be sufficient to benefit from cardiovascular effects. Prefer unsweetened or lightly sweetened cocoa to avoid empty calories.

Key takeaway

Dark cocoa epicatechin offers remarkable cardiovascular benefits with optimal absorption.

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