According to The Guardian, polyphenols are a group of natural chemicals found in plants that help protect them from threats such as insects or UV rays. When we consume polyphenols, these benefits are also transferred to the human body, bringing many positive effects.
Polyphenols are concentrated in deeply colored fruits and vegetables such as beets, blackberries, black olives, red tomatoes, and dark leafy greens. Tea, coffee, dark chocolate, and extra virgin olive oil are also rich sources of polyphenols.
Research shows that polyphenol compounds, especially catechins in green tea, can improve metabolism, reduce waist circumference and body mass index (BMI). This is especially helpful in weight control and reducing the risk of metabolic diseases.
“Polyphenols from cocoa help reduce the risk of stroke and heart attack, while catechins from green tea improve waist circumference and overall health,” explains Dr Federica Amati, a nutritionist at Imperial College London.
The diverse health benefits of polyphenols include cardiovascular protection; improved blood circulation and reduced blood pressure; and protection against aging and neurodegenerative diseases.
One study found that people who ate a diet rich in polyphenols had a 46% lower risk of heart disease than those who ate less of these compounds.
Polyphenols in hibiscus have been shown to lower blood pressure, support vascular health and improve circulation.
Polyphenols not only slow down the signs of aging on the skin, but also support brain function, reduce inflammation, and have the potential to prevent Alzheimer's disease.
Researchers believe that polyphenols become effective by interacting with the gut microbiota. Once in the body, they are "processed" by gut bacteria into smaller, more easily absorbed compounds, helping to improve overall health.
However, the exact mechanism of action of polyphenols is still under investigation. “We have only scratched the surface of the iceberg,” says Professor Daniele Del Rio from the University of Parma, Italy. “But recent findings open the way for further research.”
To reap the benefits of polyphenols, experts recommend eating plenty of deeply colored fruits and vegetables; and drinking green, hibiscus, or black tea.
Use extra virgin olive oil and enjoy some dark chocolate (70% or higher cocoa content). Add walnuts, pistachios and other nuts to your diet.
Polyphenols are more than just a nutritional trend; they could be the key to a slim waistline, healthy heart, and youthful skin. While there’s still a lot of research to be done, adding polyphenol-rich foods to your daily diet could have significant health benefits.
