What are antioxidants, exactly?

Here’s an antioxidant definition and the best antioxidant foods to add to your diet, according to experts.

Ever purchased a food or beverage labeled “antioxidant-rich” withoutreallyknowing what that term means?

kidney beans

Place 2 trimmed artichokes in a deep microwave-safe baking dish with 1 tablespoon water. Cover and microwave on high (power level 10) until tender, 10 to 12 minutes.piranka/Getty Images

You’re not alone.

(Here’s looking at you, $12acai bowl.)

What Are Antioxidants, Exactly?

Steam Artichokes

Place 2 trimmed artichokes in a deep microwave-safe baking dish with 1 tablespoon water. Cover and microwave on high (power level 10) until tender, 10 to 12 minutes.piranka/Getty Images

To understand antioxidants, it helps to know a bit about free radicals.

“They can do harm to your bodythinkcausing inflammationand increasing your risk of disease.”

Many of these we’re highly familiar with, likevitamin C, vitamin E, selenium, and beta-carotene.

bowl of strawberries: strawberry nutrition

Others are less familiar: polyphenols, flavonoids, lipoic acid, glutathione, and so on.

Here are the top antioxidant-rich foods, according to registered dietitians.

(FYI, none mention any pricey matcha-goji-turmeric-tonic wellness bowls).

BBQ-Spiced Pecans Recipe

Jennifer Causey

Antioxidant Foods

Beans

Beans are rich sources of antioxidants, too.

Anthocyanins have been shown to reduce the risk of diabetes, heart disease, and cancer.

Many types of beans provide antioxidants.

Assorted spices

Dan Goldberg/Getty Images

“Research shows ellagic acid can make cancer-causing molecules inactive and prevent tumors from growing.

Spices

There are tons of antioxidant-rich spices, from oregano and cumin to sage and thyme.

Silberman recommends topping air-popped popcorn with sea salt, rosemary, and thyme.

Pumpkin seeds

John Lawton

“This snack is a great way to get both fiber and antioxidants in one bowl.”

Some easy-to-use spices include cinnamon, turmeric, and cloves.

Cloves contain eugenol, which has strong antioxidant properties.

Apple-recipes

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“I like taking individual pouches with me when I’m on-the-go for a nutrient-packed, filling snack.”

Grapes

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Grapes are high in antioxidants because they are packed with resveratrol and other polyphenols.

However, different grape varieties have different levels of antioxidants due to their distinct phenolic compositions.

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ArtCookStudio/Getty Images

It is also full of quercetin, patuletin, spinacetin, and jaceidin.

In other words: It reduces inflammation, has anticancer properties, protects your brain, and more.

Bell Peppers

Bell peppersare also full of antioxidants.

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Istetiana/Getty Images

Red bell peppers, in particular, are rich in vitamin C and certain carotenoids.

These function as antioxidants to promote better vision, overall eye health, and cardiovascular functioning.

Dark Chocolate

Israel Sebastian/Getty Images

That’s right, even dark chocolate has antioxidant properties.

Whipped Ricotta Toast with Sweet-and-Sour Pepper Topping Recipe

Greg DuPree

However, it’s important to note that not all chocolate is created equally.

Most dark chocolate is rich in flavanols, which are linked to a lower risk of heart disease.

However, milk chocolate has far fewer flavanols, and white chocolate doesn’t contain any.

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Israel Sebastian/Getty Images

Adding lentils to your diet can help decrease your risk of degenerative diseases.

That’s thanks to the polyphenols and bioactive compounds in lentils that act as antioxidants.

Oats are also full of Vitamin E, phytic acid, and phenolic compounds.

Red Lentil Soup With Lemon And Dill

Victor Protasio

Overall, oats can help improve heart health.

Harvard School of Public Health:The Nutrition Source.

Barikmo, I. et al.

Buckwheat, Almond, and Coconut Granola

Greg DuPree

2017 Aug 13;61(1):1361779. doi: 10.1080/16546628.2017.1361779.

Rizzo, G. “The Antioxidant Role of Soy and Soy Foods in Human Health.“Antioxidants.

Ganesan, K. et al.

Crispy Chickpeas and Veggies With Carrot Hummus

Caitlin Bensel

“Polyphenol-Rich Dry Common Beans (Phaseolus vulgaris L.) and Their Health Benefits.

“Int J Mol Sci.2017.

“‘Musical Fruit’ Rich Source Of Healthy Antioxidants; Black Beans Highest.

“American Chemical Society.

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2014 Jun;11(2):92-100. doi: 10.7497/j.issn.2095-3941.2014.02.004.

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Brown, M. “Turmeric Benefits.”

Oliveira, W. et al.

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“Asian Pac J Trop Biomed.

Volume 10, 2020. doi: 10.1016/j.sciaf.2020.e00575.

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Gonzalez, J. et al.

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Eggersdorfer M, Wyss A.

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“Dark chocolate health benefits?

The good and the bad to this sweet treat.”

Alexander, R. et al.

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“Nutritional composition and antioxidant properties of three varieties of carrot (Daucus carota).