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Top 10 Health Benefits of Flax Seed

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  Published on September 22nd, 2021
  Reading time: 5 minutes
  Last modified July 1st, 2023
benefits of flax seed

Flax seeds are popular among those following a paleo, vegetarian, or ketogenic diet! Let’s discuss the top ten health benefits of flax seed and the best ways to incorporate them into your ketogenic diet.

1.)  Nutrient-Rich

Flaxseeds come in two main types: brown and golden. 1 Tablespoon (about 7 grams) of flaxseeds contains 1.3 grams of protein, 1.9 grams of fiber, and 1,597mg of omega-3s! You can also get 8% of the RDI for vitamin B1, 7% of the RDI for magnesium, and 4% of the RDI for phosphorous.

2.)  Fiber

The health benefits of fiber are no secret, and flax seeds contain two types of dietary fiber: soluble and insoluble. You can obtain 3 grams of fiber in just one tablespoon of flaxseeds, which is an estimated 8-12% of the RDI for men and women.

Bacteria in the large bowel ferment the fiber in flaxseeds and improves bowel movement regularity. Fiber is also useful for improving irritable bowel syndrome and preventing constipation. [2] 

types of fibers- benefits of flax seed

3.)  Cholesterol

You might not know that flaxseeds can lower cholesterol levels. Research shows people with high cholesterol who consumed 3 tablespoons of flaxseed powder every day for three months experienced a reduction of ‘bad’ LDL cholesterol by almost 20% and total cholesterol by 17%. [3]

One study examined people with diabetes who consumed 1 tablespoon of flaxseed powder every day for one month. The study revealed a 12% increase in ‘good’ HDL cholesterol. [4]

These effects might be a result of the fiber in flaxseeds binding to bile salts before being excreted from the body. Cholesterol is pulled from your blood into your liver to replenish these bile salts, which lowers your blood levels of cholesterol. [5]

4.)  Omega-3s & Heart Health

You’ve heard all the fuss about omega-3s! If you don’t eat fish or you’re a vegetarian, flaxseeds are a good source of the omega-3 alpha-linolenic acid (ALA) – the plant-based omega-3 fatty acid.

ALA is an essential fatty acid you must obtain from your food because your body doesn’t produce them. The studies on the health advantages of ALA are impressive. For example, one study of 3,638 people revealed those who consumed more ALA had a lower risk of heart attack compared to those who consumed less ALA.

A review of 27 studies involving over 250,000 people showed ALA may help reduce the risk of heart disease by 14%. Flaxseed oil has a higher content of ALA compared to flaxseeds. [6] [7]

omega 3 fatty acids

5.)  Plant-Based Protein

Flaxseeds are a popular source of high-quality plant-based protein. Flaxseed protein has an abundance of amino acids: glutamic acid, aspartic acid, and arginine. [8] [9]

Lab and animal studies show flaxseed protein had antifungal properties, helped prevent tumors, lowered cholesterol, and improved immune function. [10] [11] [12]

6.)  Cancer Risk

Compared to other plant foods, flaxseeds have up to 800 times more lignans. Lignans are antioxidant plant compounds with estrogenic properties that have been shown to improve health and lower the risk of cancer. [13]

One study involving over 6,000 women concluded those who eat flaxseeds are 18% less likely to get breast cancer. More research is needed specifically on lignans in flaxseeds and cancer risk. [14]

7.)  Blood Pressure

Studies show flaxseeds have a natural ability to lower blood pressure. One study found ingesting 30 grams of flaxseeds every day for six months lowered diastolic and systolic blood pressure by 7 mmHg and 10 mmHg. [15]

A large review of multiple studies concluded taking flaxseeds every day for over three months decreased blood pressure by 2 mmHg. Lower blood pressure could decrease the risk of fatality from a stroke or heart disease. [16] [17]

8.)  Blood Sugar

High blood sugar levels are usually the result of the body’s resistance to insulin or the inability to produce insulin. When people with type 2 diabetes included 10-20 grams of flaxseed powder in their diet every day for at least one month, they experienced 8-20% decrease in blood sugar levels. [18] [19] [20]

The blood sugar-lowering effect might be due to flaxseeds’ insoluble fiber content. Insoluble fiber slows down the release of sugar into the blood, which reduces blood sugar. [21]

9.)  Satiety

If you’re a sneaky snacker on your keto diet, you might want to consider adding flaxseeds to your meals or beverages to ward off hunger pangs. One study revealed adding 2.5 grams of flax fiber to a drink decreased feelings of hunger and appetite. [22]

Flaxseeds might boost satiety due to the soluble fiber content. Soluble fiber slows digestion in the stomach and triggers hormones that control appetite and make you feel full. [23] [24]

Suppressing hunger and increasing feelings of fullness could be helpful for weight control.

10.) Versatility

You can add versatile flaxseeds or flaxseed oil to a range of common ketogenic foods, for example: 

  • Dress your salad with flaxseed oil
  • Add flaxseeds to your water or smoothie and drink it
  • Add flaxseeds to water as an egg substitute
  • Mix flaxseeds into a keto yogurt
  • Bake them into delicious keto baked goods
  • Sprinkle a tablespoon of ground flaxseed over your cold or hot keto breakfast cereal

Flaxseed Tips and Recipes

So now that you know all of the benefits of flax seed, you might be wondering how to incorporate more into your diet. Here are some helpful tips and recipes!

Flaxseed oil is typically extracted by cold pressing, and the oil is sensitive to light and heat. It’s best to keep your flaxseed oil in dark glass bottles and store it in a dark, cool place like your kitchen pantry or cabinet. Flaxseed oil isn’t suitable for cooking at higher temperatures, but there are other keto-friendly oils available.

Do You Enjoy the Benefits of Flax Seed on the Keto Diet?

How do you incorporate flaxseeds into your ketogenic diet? Comment below and share your thoughts!

Steph Green is a content writer specializing in and passionate about healthcare, wellness, and nutrition. Steph has worked with marketing agencies, written medical books for doctors like ‘Untangling the Web of Dysfunction,’ and her poetry book ‘Words that Might Mean Something.’ In 2016, after four years of struggling with her own health problems and painful autoimmune disease, Steph developed a life-changing and extensive knowledge of keto, nutrition, and natural medicine. She continues on her healing journey and enjoys helping others along the way.



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