Polyphenols: What They Are and Where They Are Found

21.02.2024 | Natalia Kandybey

Polyphenols are plant-derived compounds with antioxidant properties. They are found in fruits, vegetables, grains, nuts, seeds and drinks such as tea, coffee and wine. The main classes are flavonoids, stilbenes, lignans and phenolic acids. Plants use them for protection against damage.

What are polyphenols?

Polyphenols are a large class of plant-derived chemical compounds that have antioxidant properties. They are found in many fruits, vegetables, grains, nuts, seeds, and beverages such as tea, coffee, and wine. Polyphenols contribute to the protection of plants from ultraviolet radiation and infections, and in the human body, they play an important role in the prevention of various diseases due to their antioxidant, anti-inflammatory, antiviral, and anti-cancer effects.

Main types of polyphenols

  • Flavonoids
  • Stilbenes
  • Lignans
  • Phenolic acids

Food sources of polyphenols

They are found in many fruits, vegetables, grains, nuts, seeds, and beverages such as tea, coffee, and wine.

Polyphenols and health

Scientific studies show that regular consumption of foods rich in polyphenols may reduce the risk of heart disease, type 2 diabetes, certain cancers, and neurodegenerative diseases.

Frequently asked questions

What are polyphenols?

Polyphenols are plant-derived compounds with antioxidant properties.

Are polyphenols antioxidants?

Yes, polyphenols are antioxidant compounds found in plants.

What foods contain polyphenols?

Fruits, vegetables, grains, nuts, seeds, and drinks such as tea, coffee and wine.

What are the main types of polyphenols?

Flavonoids, stilbenes, lignans and phenolic acids.

Next term: Polysaccharides