20 Health Benefits Of Flaxseed Oil And Side Effects

You will find 20 amazing health benefits of flaxseed oil for males, females, and kids and its side effects in this article.

What is flaxseed oil?

Flaxseed oil, also known as linseed oil, is a yellowish oil obtained by pressing seeds of the flax plant1.

This oil is rich in polyunsaturated fatty acids essential in the human diet2.

In particular, flaxseed oil is high in alpha-linolenic acid (ALA) omega-3 fatty acids1.

Furthermore, the ratio of omega-6 fatty acids to omega-3 fatty acids is low, making it very beneficial to health1,3,4,5.

Composition of flaxseed oil6:

CompoundFamily% of content
Palmitic acid5,1
Stearic acid4,8
Oleic acidΩ-922,3
Linoleic acidΩ-614,0
α-linolenic acidΩ-353,5

Omega-3 fatty acids and methylation

Studies have shown that omega-3 fatty acids regulate several enzymes involved in the methylation cycle7,8.

What is the methylation cycle?

The methylation cycle is a process that regulates gene expression and protein function9.

It also neutralizes heavy metals via glutathione production9.

As such, it plays an essential role in your body.

Role of omega-3 fatty acids in methylation

Your body converts a part of alpha-linolenic acid (ALA) found in flaxseed oil into DHA and EPA, the omega fatty acids found in fish oil3.

ALA, DHA, and EPA regulate enzymes in the methylation cycle7,8, thereby decreasing homocysteine levels7,8,11,12.

This attribute makes flaxseed oil very beneficial to health, as high homocysteine levels are associated with a wide range of diseases13,14.

20 Health benefits of flaxseed oil

Here are 20 amazing health benefits of eating flaxseed oil for males, females, and kids:

1. Weight loss

Studies have shown that flaxseed oil helps to decrease weight and waist circumference15.

Also, it reduces total cholesterol, LDL “bad” cholesterol, and triglyceride levels15.

Linseed oil, indeed, regulates lipid metabolism and reduces fat accumulation in the liver thanks to its high alpha-linolenic acid (ALA) content16.

ALA regulates, namely, genes associated with obesity via DNA methylation10,17,3.

Related: 6 Reasons To Eat Coconut Oil For Weight Loss

2. Treatment of diabetes

Type 2 diabetes (the most common type) is characterized by insulin resistance and high insulin and blood glucose concentrations18,19.

Research indicates that flaxseed oil prevents insulin resistance and reduces insulin and blood glucose levels thanks to its high content of ALA20,21,22.

3. Protection of cardiovascular health

Cardiovascular disease are conditions that involve the heart or blood vessels, such as23:

  • Heart failure
  • Coronary artery diseases
  • Myocardial infarction
  • Stroke
  • Aortic aneurysms
  • Venous thrombosis
Heartbeat respiratory rate cardiopulmonary synchronization diaphragmatic breathing sleep insomnia.

Cardiovascular disease and cholesterol

Cardiovascular disease and atherosclerosis risk are directly related to blood cholesterol profile3,17,24.

By reducing triglycerides, total, and LDL cholesterol levels15, flaxseed oil protects your cardiovascular health.

Cardiovascular disease and blood sugar

Furthermore, increased blood sugar is also a major risk factor for cardiovascular diseases3.

By reducing insulin levels and increasing nitrite concentration, flax oil also diminishes cardiovascular disease risk 21.

4. Reduction of cancer

Flaxseed oil has extraordinary anti-cancer benefits.

It reduces, namely, several types of cancers such as:

  • Brain cancer25
  • Breast cancer26,27,28
  • Colon cancer29,30
  • Skin cancer31
  • Cervical cancer32

A study has shown that flaxseed oil decreases cancer cell growth while slightly increasing the proliferation of normal cells5.

Breast cancer reduction is possibly due to linseed oil’s high ALA content27.

However, linusorbs, natural peptides found in flax oil, also seem to play a role in the death of cancer brain cells25.

Related: How To Alkalize Your Body Fast

5. Promotion of skin health

Flaxseed oil has multiple benefits for the skin.

A study involving 26 women revealed that flaxseed oil supplementation improved skin condition and diminished skin sensitivity33.

It decreased, to wit, skin roughness and scaling while increasing skin hydration and smoothness33.

6. Improvement of bone health

Consumption of flaxseed oil results in higher bone:

Bone health

Besides, a study suggests that flaxseed oil decreases estrogen deficiency-induced osteoporosis37.

7. Protection of gut health

Flaxseed oil has amazing benefits for your gut microbiota.

It, namely, decreases levels of gut bacteria that are typically high in diabetic and alcoholic individuals22,38.

Conversely, it increases the number of gut bacteria usually low in diabetic and alcoholic people22,38.

Related: 7 Strongest Natural Antibiotics

8. Eradication of fungi

Flaxseed oil also has antifungal benefits thanks to its linoleic acid and alpha-linolenic acid content39.

Linseed oil is also a powerful tool to get rid of Candida albicans77,78.

Flaxseed oil kills Candida albicans.

Related: 10 Strongest Candida Killer Supplements

9. Elimination of parasites

Among the multiple benefits of flaxseed oil, we count its anti-parasitic properties.

Flax oil has a suppressive effect on the growth of Plasmodium falciparum, a protozoan parasite responsible for malaria41.

These effects are due to its high level of ALA41.

Symptoms of liver flukes (Fasciola hepatica) in humans.
Flaxseed oil eliminates liver flukes (Fasciola hepatica).

Dietary linseed oil also significantly reduces the number of Strongylidae worms42 and liver flukes (Fasciola hepatica)43.

Related: Symptoms Of Liver Flukes In Humans

10. Improvement of kidney function

Flaxseed oil improves kidney function caused by hypertension by lowering blood pressure44,45.

This effect is due to its high ALA content44,45.   

Related: How To Detox Aluminum From The Body

11. Protection of liver health

Dietary flaxseed oil reduces liver injury resulting from chronic alcohol consumption38.

It also attenuates non-alcoholic liver disease induced by a high-cholesterol diet46,47 or high blood pressure44.

Furthermore, linseed oil also reduces liver hepatitis48.

Related: 3 Best Liver Cleanse Juice Recipes

12. Removal of heavy metals

Flaxseed oil has amazing benefits for heavy metal removal.

It reverses, to wit, oxidative damage caused by:

Bentonite heavy metal metals detox cleanse.

The mechanism is the following:

Glutathione is an antioxidant synthesized in human cells54,55 capable of preventing cellular damage caused by free radicals, peroxides, and heavy metals54.

Studies have shown that flaxseed oil supplementation increases glutathione levels47,48.

Related: 10 Best Heavy Metal Detox Supplements

13. Relief of constipation

Research reveals that flaxseed oil improves the frequency of evacuation and the consistency of stools56.

Constipation relief

Related: 5 Immediate Constipation Relief Remedies

14. Reduction of inflammation

Studies report that flaxseed oil reduces inflammation in patients with metabolic syndrome, a chronic disease with inflammatory states57,58.

Furthermore, linseed oil also reduces arthritis59.

15. Promotion of brain health

Flaxseed oil has excellent benefits for brain function.

It has, namely, neuroprotective effects on functional motor recovery following a brain stroke60.

Linseed oil also improves cognitive function and reduces Alzheimer’s disease61,62,63,64.

Moreover, research reported that supplementation of flax oil and vitamin C reduces hyperactivity in ADHD children65.

Related: Omega-3 And Fish Oil For Autism

16. Relief from depression

Studies revealed that flaxseed oil improves depression status by inducing antidepressant-like effects66,67,68.

17. Reduction of eye dryness

Dry eye syndrome, also known as keratoconjunctivitis sicca, is a condition in which eyes are dry69.

It can also include symptoms, such as irritation, redness, discharge, and tired eyes69.

Researchers have shown that the consumption of flaxseed oil reduces eye dryness in patients with Sjögren’s syndrome70 or meibomian gland dysfunction71.

Related: How To Get Rid Of Pink Eye (Conjunctivitis) Fast

18. Lowering of blood pressure

Studies report that flaxseed oil reduces blood pressure thanks to the effect of ALA72,44.

Blood pressure reduction

19. Reduction of atherosclerosis

Atherosclerosis is a condition in which there is a buildup of atheromatous plaque in the artery wall73.

It may lead to coronary or peripheral artery disease, stroke, or kidney problems73.


Research demonstrated that dietary flaxseed oil reduces atherosclerotic plaque formation74 and atherosclerosis75.

20. Lessening of menopause symptoms

During menopause, the amount of estrogen and progesterone hormones produced by the ovaries decreases.

A study shows that flaxseed oil can mimic the action of estrogen76.

This effect may be due to its high content of fatty acids, phytoestrogens, or antioxidants76.

As such, it can be a potential hormone replacement therapy for menopause76.

Flaxseed oil dosage

How much flaxseed oil per day?

Take one teaspoon of flaxseed oil one day out of three. Then, with time, you can increase the dosage and take it daily.

How to use flaxseed oil?

If you mix flaxseed oil with cottage cheese and ground flaxseed according to Dr. Johanna Budwig’s recipe, you will amplify its health benefits.

Flaxseed oil goes rancid, and as a result, loses its health benefits quickly. For these reasons, keep it refrigerated and put the lid back on soon as you have used it.

Related: Top 13 Foods That Kill Parasites

What form of flaxseed oil is best?

We recommend avoiding capsules and buying organic cold pressed flax oil in a glass bottle instead.

Generally, brown flaxseed oil contains more alpha-linolenic acid than golden flax oil49.

Where to buy flaxseed oil?

You can usually find organic flaxseed oil in a glass bottle at your local supermarket.

It is also available online at Amazon, iHerb, etc.

Related: 13 Health Benefits Of Cilantro (Coriander) Leaves

Flaxseed oil side effects

The side effects of flaxseed oil are the following:

  • Flaxseed oil can make you feel tired and dizzy, in the beginning, due to its cleansing effect on the liver. With time, on the contrary, it will make you feel more energized and focused.
  • Also, if you take too much flax oil, it can make you feel bloated and constipated. For these reasons, it is best to begin with a small dosage and progressively increase the amount.

These Side Effects Are Known As A Herxheimer Reaction. Here Is To Prevent This Reaction.

Summary: 20 Health benefits of flaxseed oil and side-effects

Flaxseed oil has amazing health attributes thanks to its high content of alpha-linolenic acid (ALA) content.

These omega-3 fatty acids play, indeed, a crucial role in the methylation cycle, a process essential in your body.

Here are 20 health benefits of flaxseed oil for males, females, and kids:

  1. Weight loss
  2. Treatment of diabetes
  3. Protection of cardiovascular health
  4. Reduction of cancer
  5. Promotion of skin health
  6. Improvement of bone health
  7. Protection of gut health
  8. Eradication of fungi
  9. Elimination of parasites
  10. Improvement of kidney function
  11. Protection of liver health
  12. Removal of heavy metals
  13. Relief of constipation
  14. Reduction of inflammation
  15. Promotion of brain health
  16. Relief from depression
  17. Reduction of eye dryness
  18. Lowering of blood pressure
  19. Reduction of atherosclerosis
  20. Lessening of menopause symptoms

Furthermore, the side effects caused by flaxseed oil are due to its liver cleansing effect and disappear over time.

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