What Are Polyphenols?
Polyphenols are a diverse group of naturally occurring micronutrients found in plants. They’re responsible for the vibrant colors, flavors, and defense mechanisms in fruits, vegetables, teas, herbs, and spices. In humans, they act primarily as antioxidants and anti-inflammatories, helping to protect cells from damage and regulate key biological processes.
There are over 8,000 known polyphenols, but they fall into four main categories:
- Flavonoids – Found in berries, tea, onions, and dark chocolate. Known for reducing inflammation and supporting heart and brain health.
- Phenolic acids – Present in coffee, whole grains, and certain fruits. They help combat oxidative stress.
- Polyphenolic amides – Found in chili peppers and oats. These have protective effects on cells.
- Lignans and stilbenes – Found in seeds, grains, and red wine. They support hormonal balance and cellular health.