What Are Polyphenols? Health Benefits And 5 Foods That Are Rich In Them

Polyphenols are naturally occurring plant compounds available in vegetables, fruits, herbs, nuts, spices, seeds, and several other plant-based foods. Polyphenols are popular for their antioxidant properties that can protect the body’s cells from damage caused by free radicals. Recently, polyphenols gained significant attention for their role in supporting brain function, heart health, immunity, and overall well-being. 

Role Of Polyphenols In Human Body

Polyphenols function as antioxidants that can effectively neutralize unstable molecules known as free radicals. Excessive free radical activity can cause oxidative stress that has been associated with aging and several other chronic diseases.

Polyphenols can support a healthy inflammatory response, promote cardiovascular health, help maintain healthy blood vessel function, support gut microbiome diversity, prevent cancer, type 2 diabetes, and contribute to cognitive and brain health. The best way to get polyphenols is via varied diet rich in plant-based foods.

According to a study published in National Library of Medicine, “Animal, human and epidemiologic studies show that various polyphenols have antioxidant and anti-inflammatory properties that could have preventive and/or therapeutic effects for cardiovascular disease, neurodegenerative disorders, cancer, and obesity.” ¹

Long-term intake of polyphenol rich diets can protect against certain cancers, cardiovascular diseases, type 2 diabetes, osteoporosis, pancreatitis, gastrointestinal problems, lung damage, and neurodegenerative diseases, added the study.

Foods Rich In Polyphenols

1. Black Seeds (Kalonji): Kalonji, also known as black seed, has been used for decades in several traditional medicines. It has various bioactive compounds, including thymoquinone, which possesses antioxidant properties. Kalonji supports overall wellness, combats oxidative stress, and improves immunity. Kalonji can be included in curries, breads, and salads. A small amount of kalonji can add both flavour and nutritional value to meals. 

Recently, nutritionist Deepsikha Jain took to her Instagram account and highlighted the 5 foods rich in polyphenols. She said, polyphenol rich foods can feed your gut bacteria and improve your gut health. “The first is going to be black seed or kalonji. These are rich in thymoquinone, that’s a type of polyphenol that can actually be great to reduce inflammation and highly anti-inflammatory.” ²

2. Dark Chocolate: Dark chocolate, especially varieties containing at least 70% cocoa, is rich in flavonoids, a type of polyphenol. Deepsikha said, “dark chocolate has flavonoids. These are great source of prebiotic fibre for your gut and a type of polyphenol that improves your brain health.”

Dark chocolate can help protect cells from oxidative damage, may support healthy circulation, and contain minerals like magnesium and iron. Selecting dark chocolate with a higher cocoa content generally offers more polyphenols than milk chocolate.  

3. Garlic: It contains sulfur compounds and polyphenols that can contribute to it health-boosting properties. It has long been valued for both culinary and medicinal properties. Regular intake of garlic can support cardiovascular health, offer antioxidant compounds, and maintain overall wellness. Fresh garlic can be added in soups, veggies, curries, and sauces.

Deepsikha said, Garlic is rich in quercetin that is a compound that can reduce oxidative stress. Garlic can prevent any heart issues or even high blood pressure.

4. Turmeric: It is one of the most extensively researched spices all across the globe. Its active compound, curcumin, is popular for its antioxidant properties and potential role in supporting a healthy inflammatory response. Deepsikha jain said, “Take fresh turmeric as it has curcumin, a polyphenol that can actually be highly anti-inflammatory.”

Turmeric can support joint and overall health, combat oxidative stress, and contribute to healthy aging. It can be easily added to curries, teas, and milk-based beverages. Combining turmeric with black pepper may boost curcumin absorption.  

5. Blueberries: They are counted among the richest fruit sources of anthocyanins, a group of polyphenols responsible for their deep blue color. The nutritionist said, “These have anthocyanin that’s a type of polyphenol which is great to reduce inflammation and also really good for your brain health.”

Regular intake of blueberries as part of balanced diet can help protect cells from oxidative damage, offer fibre, vitamin C, and may contribute to healthy aging.  Blueberries can be relished fresh, frozen, or added to smoothies, yogurt, and oatmeal.  

Polyphenols are powerful plant compounds that may support overall health by helping protect the body against oxidative stress and supporting normal physiological functions. Foods such as kalonji, dark chocolate, garlic, turmeric, and blueberries are rich sources of these beneficial compounds. Including a variety of polyphenol-rich foods in your daily diet is a simple and delicious way to support long-term wellness and maintain a healthy lifestyle.

FAQs

References

1. National Library of Medicine|The Role of Polyphenols in Human Health and Food Systems: A Mini-Review

2. Nutritionist Deepsikha Jain via Instagram|5 Foods rich in polyphenols

Disclaimer: This content is for general informational purposes only and should not replace professional medical advice. Always consult a qualified healthcare provider with any questions about your health or treatment options.