Flaxseed Nutrition Facts and Health Benefits

Flaxseed is an important plant-based source of omega-3s, but it also provides various health benefits.
Jyothi Shenoy, MD, MBA

Written by Jyothi Shenoy, MD, MBA. Updated on December 16, 2022.

Flaxseed is one of the oldest seeds with its crunchy consistency and nutritional content. It has its origins in Babylon.

Not only is it a good source of protein, but it is effective in lowering cholesterol levels thanks to its high fiber content.

Most of its calorie content comes from fats. It is an indispensable source of omega-3 fatty acids, a beneficial group of essential fatty acids that support your cardiovascular health thanks to its blood pressure-lowering effect.

It is a great source of vitamins, minerals, and antioxidants. Flax seeds are particularly high in copper and manganese and also very rich in thiamine (vitamin B1), an important vitamin for energy metabolism.

Furthermore, it has a protective effect against cancer types thanks to magnesium, phosphorus, and zinc minerals.

Flax seeds can be used in various ways; you can add them to smoothies, breakfast oatmeal, cakes, and cookies. They are also used as an egg substitute.

To improve flaxseed bioavailability, you should always grind it before eating. Otherwise, it can pass through the intestines without being digested.

Flaxseed Quick Nutrition Facts

Here's a quick nutrition overview for 3.5 ounces (100 grams) of flaxseed:

  • Energy: 534 calories
  • Carbs: 28.9 grams
  • Sugar: 1.55 grams
  • Fiber: 27.3 grams
  • Protein: 18.3 grams
  • Fat: 42.2 grams
  • Saturated Fat: 3.66 grams

Jump to a section where you can learn more about flaxseed nutrition value, including macronutrients, vitamins, minerals, protein quality, and more.

Health Benefits of Flax Seeds

Thanks to a significant amount of specific vitamins and minerals, flax seeds could provide several health benefits.

Continue reading to discover the potential benefits of consuming flax seeds.

May Improve Normal Nerve and Brain Function

Manganese is also needed for normal nerve and brain function. When combined with other nutrients like calcium and zinc, manganese can support the bone formation processes and improve bone mineral density.

It is a vital nutrient that helps in the formation of connective tissue, blood clotting factors, bones, and reproductive hormones.

Manganese also supports the metabolism of fat and carbohydrate and enhances calcium absorption. It can help with blood sugar regulation, thereby improving glycemic control in patients with diabetes.

This is especially important for postmenopausal women and older men who are at a higher risk of osteoporosis due to the decline in bone mineral density.

Manganese is an integral part of the body’s antioxidant mechanisms. It helps in the synthesis of an enzyme called superoxide dismutase, which acts as a powerful antioxidant in the body and prevents oxidative stress linked to the high risk of cancer, autoimmune disorders, and diabetes.

It can also reduce inflammation and hence, can be useful as a potential therapeutic agent for the management of inflammatory disorders such as osteoarthritis and inflammatory bowel disease.

They May Improve the Nervous System Health

Vitamin B6, or pyridoxine, is important for the normal development of the brain in children and adults. It can also keep the immune system and nervous system healthy and, thus, reduce the risk of several diseases.

It can also help in the formation of red blood cells and, thus, improve the bodily functions involved in the transportation of oxygen in the form of oxyhemoglobin.

Vitamin B6 can help release sugar from the fats stored in the body to meet the need for energy supply in the future.

This action of vitamin B6 can be beneficial in the management of diabetes.

It can regulate the amount of fat that can be converted into a usable form of energy, especially in the absence of a ready supply of carbohydrates from dietary sources.

This can ensure the body receives a steady supply of glucose, which is its primary source of fuel and protect patients against serious complications of diabetes.

May Support Energy Production

Iron helps to support energy production at the cellular level. It can ensure the body receives a steady supply of fuel, thus allowing you to feel fresh and energetic and maintain focus.

It is an important mineral involved in several bodily functions, including the supply of energy to the cells and the transport of oxygen to the tissues through the bloodstream.

Our body uses this mineral to make hemoglobin, a form of protein in red blood cells, which transports oxygen from the lungs to all the organs and tissues of the body.

It also helps in the formation of myoglobin, another protein that carries oxygen to the muscles.

The body also needs iron to secrete some hormones. It is needed for the normal growth and development of the body.

It also helps the immune system function more effectively, thus preventing infections due to bacteria, viruses, and fungi.

It can also support digestive processes, thus improving the absorption of nutrients in the gut.

May Reduce the Risk of Some Cancers

Potassium is important for the normal functioning of the muscles, nerves, and heart.

It also plays a role in the formation of DNA and RNA, thus reducing the risk of cancer linked to mutations in these genetic materials.

Potassium helps to lower blood pressure by promoting the removal of sodium from the body via urine.

The removal of sodium results in the elimination of water from the body, thus reducing fluid overload.

The reduction in fluid overload and water retention in the body helps to lower the blood pressure and decreases the strain on the heart.

Potassium also helps the muscles contract, thereby supporting our movements. It can keep the bones and teeth strong and aid muscle recovery after strenuous exercise sessions.

Potassium can also help in filtering and removing toxins and waste materials from the kidneys and promote the conduction of nerve impulses throughout the body.

It can improve energy usage and storage in the body, ensuring an adequate supply of glucose to the cells to help them perform their normal functions.

They May Improve Nerve Functions

Copper is needed for the optimal functioning of the nervous system. It can improve mood by regulating the balance of hormones in the brain.

It can also support nerve functions and improve the transmission of signals between different parts of the body.

Copper can keep the nerve cells healthy and reduce the risk of neurodegenerative diseases such as dementia and Alzheimer’s disease.

It is also needed by the body for several functions, including the formation of red blood cells.

Copper can support the defense mechanisms of the immune system involved in infection prevention.

It also helps in the formation of collagen, a protein that makes up our skin, bones, and other tissues. It protects the cells from damage and improves the absorption of iron in the body, thereby increasing the availability of this vital nutrient.

Copper is also needed for regulating carbohydrate metabolism. It can help to convert sugar into a usable form of energy, thus ensuring the body receives a steady supply of fuel to perform its critical functions.

They May Reduce the Risk of Infections

Selenium can boost immune functions and reduce the risk of infections.

It can also regulate the activities of the immune cells against allergens and irritants and, thus, prevent the symptoms of allergic diseases like asthma, dermatitis, and rhinitis.

It also plays a role in restoring healthy immune functions, thus preventing the development and progress of autoimmune disorders that occur when the immune cells fail to recognize the body’s tissues as their own and attack them.

Selenium can improve the health of the skin, hair, and nail. It can support the healing of skin lesions and promote hair growth.

It can also support a healthy thyroid and prevent the occurrence of thyroid dysfunctions.

Selenium may help to lower the risk of some forms of cancer.

This benefit of selenium could be attributed to its ability to reduce oxidative stress and DNA damage, boost the immune system, and destroy cancer cells.

They May Reduce the Risk of Cancer

Vitamin B9 or folate plays a key role in cellular division. It can regulate the processes involved in cell division.

This can reduce the risk of cancer that can occur due to the uninhibited division of cells resulting in the formation of a large number of cells that fail to mature completely.

It also aids in the production of the body’s genetic material, such as DNA and RNA. It is especially important to ensure that the body is not deprived of this nutrient when tissues and organs are growing rapidly, such as during pregnancy, infancy, and adolescence.

Vitamin B9 plays a key role during pregnancy by regulating the replication of DNA and RNA, thereby supporting the proper growth and development of the fetus.

It can also help in the normal growth and development of children.

Vitamin B9 also works closely with other nutrients, especially vitamin B12, and helps the body make red blood cells by improving the availability of iron.

May Boost Immune System

Zinc is also needed for maintaining normal immune functions. Zinc also helps in the production of the active form of vitamin A and the transportation of this nutrient around the body.

It is one of the important minerals involved in the growth and development of organs and tissues.

Zinc is necessary for the activities of more than 300 enzymes, which take part in the metabolic processes, digestion, and nerve function.

It is fundamental to DNA synthesis, skin health, and protein production.

Zinc can support the secretion of reproductive enzymes, especially testosterone, thus improving sperm count and sperm motility in men.

It can promote muscle growth, act as an antioxidant, reduce inflammation, and protect against chronic conditions such as cancer, heart attacks, and diabetes.

Zinc is known for its role in the maintenance of normal blood sugar levels and insulin secretion.

These functions of zinc can help in the effective control of diabetes and reduce the risk of related complications.

They May Improve Your Sleep

Magnesium plays a key role in improving the duration and quality of sleep.

It maintains the chemical balance in the nervous system and creates a sense of calmness and relaxation that is favorable for getting sound sleep.

Magnesium can also regulate the secretion of neurotransmitters in the brain, thus stimulating the production of the sleep hormone called melatonin. It can elevate the melatonin levels in the nervous system, thus reducing the time needed to fall asleep.

This mineral also has the ability to stimulate the normal activities of the nervous system and reduce the risk of mood disorders and depression.

Magnesium is important for maintaining bone health and improving the utilization of glucose for energy. It also supports immune function and regulates blood pressure and lung functions.

It can fight inflammation and improve digestion, thereby relieving constipation. It can prevent the risk of diseases linked to chronic inflammation, such as diabetes and cancer, and improve general health.

May Improve the Digestion and Nutrients Absorption

Calcium can improve enzyme functions and support the digestion of food and the absorption of nutrients in the gut.

It can regulate the functions of the muscles and heart, thus maintaining the normal rate and rhythm of heartbeats.

The inadequate supply of calcium may result in arrhythmia, a cardiac disorder characterized by slow or fast heartbeats and irregular heart rhythm.

Calcium is an essential mineral that is needed for keeping bones strong and healthy. The lack of enough intake of calcium can make the bones weak and brittle, thus putting you at risk of conditions like osteopenia and osteoporosis.

It forms the basic structural network of the bones, making them more resistant to fractures in the event of a fall, a missed step, or an injury.

Calcium can also help to improve oral and dental health. It can make the teeth strong and reduce the chances of developing caries and cavities in the tooth.

Calcium can also support the blood clotting processes and help in the transmission of signals through the nerves to and from the brain and other parts of the body.

They May Aid Removal of Unwanted Waste Material From the Body

The primary function of phosphorus is linked to the formation of teeth and bones.

Phosphorus also helps to remove unwanted waste material from the body, thus reducing the toxic overload and cleansing the blood. This can restore healthy bodily functions and reduce the risk of several diseases.

This can help sustain the normal activities of the body and improve general health.

It also plays a role in regulating the utilization of carbohydrates and fats in the body, thus ensuring a steady supply of fuel to the cells.

It can improve glycemic control in patients with diabetes and reduce the risk of complications.

Phosphorus is also needed for the synthesis of proteins, which form the building blocks of the tissues of the body.

This effect of phosphorus can support the growth and development of the body’s organs.

It can also improve the maintenance and repair of the organs by accelerating the healing of the tissues damaged due to free radicals, inflammation, toxic exposure, and age-related degenerative changes.

Flaxseed Nutrition Facts

Continue reading to find out the following flaxseed nutrition information:

  • Macronutrients
  • Vitamin Content
  • Mineral Content
  • Amino Acid Profile
  • Fat Breakdown
  • Carbohydrate Breakdown

Macronutrients

Macronutrients, often called macros, are most commonly used term when it comes to eating a healthy diet or losing weight. There are three types of macronutrients: carbohydrates, proteins, and fats.

Macronutrients provide energy to your body and allows it to function properly. The following table contains the information on flaxseed macronutrients, while reading further will give you a better understanding on each of these macronutrients.

Carbohydrate10% DV28.9 g
Protein37% DV18.3 g
Fat54% DV42.2 g

Vitamin Content

Flaxseed are excellent source of Vitamin B1 (Thiamine), and Vitamin B6 (Pyroxidine).

They also contain a good amount of Vitamin B2 (Riboflavin), Vitamin B3 (Niacin), Vitamin B5 (Pantothenic acid), and Vitamin B9 (Folate) and some Vitamin K.

Here's the full flaxseed vitamin content per 100g:

Vitamin A0% DV0 IU
Vitamin C1% DV0.6 mg
Vitamin D0% DV0 µg
Vitamin B1 (Thiamine)137% DV1.64 mg
Vitamin B2 (Riboflavin)12% DV0.161 mg
Vitamin B3 (Niacin)19% DV3.08 mg
Vitamin B5 (Pantothenic acid)20% DV0.985 mg
Vitamin B6 (Pyroxidine)28% DV0.473 mg
Vitamin B9 (Folate)22% DV87 µg
Vitamin B12 (Cobalamin)0% DV0 µg
Vitamin E2% DV0.31 mg
Vitamin K4% DV4.3 µg

Mineral Content

Flaxseed are excellent source of Copper, Iron, Magnesium, Manganese, Phosphorus, Selenium, and Zinc.

They also contain a good amount of Calcium, and Potassium.

Here's the full flaxseed mineral content per 100g:

Calcium20% DV255 mg
Copper136% DV1.22 mg
Fluoride0% DV0 mg
Iron32% DV5.73 mg
Magnesium93% DV392 mg
Manganese108% DV2.48 mg
Phosphorus51% DV642 mg
Potassium17% DV813 mg
Selenium46% DV25.4 μg
Sodium1% DV30 mg
Zinc39% DV4.34 mg

Protein and Amino Acid Profile

Flaxseed contain 18.3 g of protein per 100 g, or in other words, flaxseed provide 3.43 g of protein per 100 kcal.

Unlike the most other plant proteins, protein in flaxseed contains all nine essential amino acids, so flaxseed are considered a complete protein source.

Histidine OK63% DV0.472 g
Isoleucine OK60% DV0.896 g
Leucine OK42% DV1.24 g
Lysine OK38% DV0.862 g
Methionine OK34% DV0.37 g
Phenylalanine OK64% DV0.957 g
Threonine OK67% DV0.766 g
Tryptophan OK99% DV0.297 g
Valine OK55% DV1.07 g

Fat Breakdown

Around 71% of the calories in flaxseed are from fat. Flaxseed have 42.2 grams or 54% of recommended daily values per 100g.

Saturated fat and trans fat can increase cholesterol levels and increase the heart disease risk.

Flaxseed fat content mostly consists of healthy unsaturated fats.

According to FDA, dietary cholesterol should be kept below 300 mg per day. Luckily, flaxseed is cholesterol free.

Flaxseed do not contain trans fats. Trans fats should be kept as low as possible.

Total Fat54% DV42.2 g
Saturated Fat18% DV3.66 g
Monounsaturated Fatdo not have a %DV7.53 g
Polyunsaturated Fatdo not have a %DV28.7 g
Trans Fatsdo not have a %DV0 g
Cholesterol0% DV0 mg

Carbohydrate Breakdown

22% of the calories in flaxseed come from carbohydrates.

Carbs in flaxseed are mostly fiber (94%), followed by sugars and starch.

When it comes to sugars, flaxseed are relatively low in sugar, containing grams of sugar per 100g.

Total Carbohydrate11% DV28.9 g
Dietary Fiber98% DV27.3 g
Sugars3% DV1.55 g

Articles related to Flaxseed

Sources

Holy Peas has strict sourcing guidelines and draws only from high-quality sources, including peer-reviewed studies, academic research institutions, and medical journals, associations and government institutions. Read more about our process.