5 Health Benefits of Flaxseeds—the Small-but-Mighty Superfood

Plus try some of our favorite flaxseed recipes for a super-healthy boost.

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Much more than just a delicate topping to sprinkle over oatmeal or a colorful acai bowl, flaxseeds have proven to be a potent powerhouse food packed with heart-healthy benefits and protective properties. And while they may seem like such teeny seeds, don't let their small size fool you: Flaxseed (also known as linseed) is loaded with notable vitamins and nutrients such as plant-based fiber, protein, and fatty acids.

In fact, the percentage of the essential omega-3 fatty acid alpha-linolenic acid (ALA) found in flaxseeds is the highest of any plant source, making this quite the superstar superfood—despite its small size. Nutrition experts break down the top health benefits of flaxseeds and share extra tips on how to add them to your diet so that you can reap all the rewards.


Though flaxseeds have recently gained official superfood status, research shows that they're one of the oldest cultivated crops, grown since the beginning of civilization. Flaxseeds are derived from the flax plant, Linum usitatissimum, and were primarily used to produce fiber for clothing and linens since 3000 B.C.

Traditionally used as an ingredient in breakfast cereals and bread, a significant number of flax products have been developed for the health food market over the last 10 years—which may explain the uptick in flaxseed popularity. Known as a very versatile super seed, you can sprinkle it into nearly anything to reap its amazing nutritional benefits: yogurt, salad, smoothies, oatmeal, cereal—the list is endless!

Health Benefits

Flaxseeds are fantastic for digestion.

For those who suffer from irregularity, these tiny gems may be a key to relieving constipation. "Flaxseeds contain high amounts of fiber which may help improve digestive health," says Fresh Thyme Market's health and lifestyle expert, Meghan Sedivy, RD, LN. Flaxseeds are an excellent source of both soluble and insoluble fiber.

Insoluble fiber promotes the movement of material through your digestive system and increases stool bulk. "Eating a diet rich in fiber helps to increase the size and weight of stool and soften it to help promote and maintain regularity and prevent constipation."

They're a good source of protein.

Protein is an important building block for bones, muscles, cartilage, and skin. (In fact, did you know that your hair and nails are mostly protein?) Flaxseeds are a great source of high-quality, plant-based protein. One teaspoon of flaxseeds contains nearly 2 grams of protein, so flaxseeds are a viable protein-packed option for those in search of alternatives to animal protein sources. Adding flaxseed to a salad or smoothie can help boost your protein intake.

Flaxseeds contain heart-healthy, polyunsaturated fats.

The good-for-you fats found in flaxseed (aka the almighty omega-3s), may benefit those with heart disease. "Flaxseeds have been associated with several heart health benefits: potentially reducing blood pressure levels, triglyceride levels, bad cholesterol levels, and inflammation in the body, while helping to increase good cholesterol levels," Sedivy says. "They also contain omega-3 fatty acids which have been linked to several health benefits that include brain health and heart health; that may help reduce blood pressure levels and inflammation, and that helps increase good cholesterol levels."

They may help lower cancer risk.

In addition to the important omega-3 fatty acids, flaxseed has been shown to prevent the development of cancerous tumors. This could be because flax is rich in lignans (a group of bioactive compounds that are chock-full of antioxidant properties) that may protect the body from cancer by slowing the growth of existing tumors. One human clinical study showed that eating a muffin containing 25 grams of flaxseed for 40 days demonstrated the potential to reduce tumor growth in postmenopausal women who were newly diagnosed with breast cancer.

Flaxseeds can help reduce skin inflammation.

Not only is flaxseed packed with internal nutritional benefits when eaten regularly, but it also contains massive beauty benefits when applied directly to the skin. Because flaxseeds are high in anti-inflammatory omega-3s, they can help curb inflammation in the skin. Flax fiber has also been shown to have a healing effect on the skin. One small study found that women who used flaxseed oil daily led to improved skin elasticity, increased hydration, and a brighter complexion.

How to Eat Flaxseeds

"One of my favorite ways to include flaxseeds is adding them to your favorite breakfast batters like breads, pancakes, or waffles," Sedivy suggests. "They're virtually tasteless, and when ground, they won't change the texture of your batter. This is a simple way to add nutrients to your meal without sacrificing taste or flavor." And again, you can toss them over salads, veggies, oatmeal, and smoothies. Add them to pestos, hummus, and sauces. Get creative—because the options are really endless.

Ground vs. whole

As for the great debate—to grind or not to grind your flaxseeds—Sedivy does recommend grinding them to get the most out of them. "Whole flaxseeds aren't as readily digestible and can pass through the digestive tract without being digested and missing all the nutritional benefits," she says. "It's better to grind your flaxseeds, since [they'll be] easier to digest, and therefore you're more likely to reap all the health benefits."

Recipes to Try

Roasted Asparagus With Flaxseed Walnut Crumble
A crumble topping made from flaxseed and walnuts (yay, Omega-3s!) tops roasted asparagus in this pretty much hands-off side dish. The nutty and fragrant topping goes well with other fresh or roasted vegetables. Use it to perk up a salad, too!Get the recipe:Roasted Asparagus With Flaxseed Walnut Crumble. Greg DuPree

Roasted Asparagus With Flax Seed-Walnut Crumble

This turmeric-spiced topping is packed with omega-3s from the flaxseeds and walnuts. Add it to more than just asparagus, too. Use it to top other roasted or raw vegetables or mix into a salad for a healthy crunch. Get the recipe.

Strawberry-Flax Smoothie
Grant Cornett

Strawberry-Flax Smoothie

Five basic ingredients—and a quick whir in the blender—and you'll be sipping on a nutrient-dense smoothie packed with berries, flaxseed, and low-fat yogurt. Get the recipe.

Superfood Pesto
Caitlin Bensel

Superfood Pesto

Sunflower, hemp, and flax come together in a symphony of flavors ranging from nutty to spicy to buttery. Not only do the range of seeds blend right into the flavor of beloved pesto, but they're also more affordable than pricey pine nuts. Get the recipe.

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