The power of polyphenols

These natural chemicals found in plant-based foods are potent allies when it comes to protecting our overall health.

- SARAH MARINOS

From beetroots and blueberries and tomatoes and tea to dark leafy greens and (yes) chocolate, there's impressive evidence that these colourful plant foods pack a powerful nutritional punch. And much of that is due to natural chemicals called polyphenols.

“Plants live a rough life – they have to survive the sun, being eaten by animals and insects and various plant diseases. Natural compounds or chemicals called phytonutrients help them survive,” explains Clare Collins, Laureate Professor in Nutrition & Dietetics at the University of Newcastle.

“The biggest group of phytonutrients is polyphenols and when we eat them, they become active in our bodies, too. They have positive effects including settling inflammation, helping our blood vessels to relax and supporting our heart, brain and kidney health.”

Polyphenols explained

Natural polyphenols with antioxidant and anti-inflammatory properties are most abundant in fruits and vegetables, whole grains, nuts, tea, coffee, extra virgin olive oil, cocoa, herbs and spices.

“Polyphenols play an important role in our health,” agrees Nadine Ghammachi, Research Dietitian at The George Institute for Global Health.

“Growing evidence suggests polyphenol-rich foods may help protect against neurodegenerative diseases, inflammation, various cancers, cardiovascular diseases, type 2 diabetes and obesity.”

Exactly how polyphenols work their magic in our body is still being figured out, but the evidence of their wide-ranging health benefits is certainly stacking up. Here are the ways they pack a punch.

Brain health and natural balance