17 Science-Based Benefits of Omega-3 Fatty Acids

Omega-3 fatty acids are incredibly important.

1. Omega-3s Can Fight Depression and Anxiety

Depression is one of the most common mental disorders in the world. Omega-3 supplements may help prevent and treat depression and anxiety. EPA seems to be the most effective at fighting depression.

2. Omega-3s Can Improve Eye Health

An omega-3 fatty acid called DHA is a major structural component of your eyes’ retinas. It may help prevent macular degeneration, which can cause vision impairment and blindness.

3. Omega-3s Can Promote Brain Health During Pregnancy and Early Life

Getting enough omega-3s during pregnancy and early life is crucial for your child’s development. Supplementing is linked to higher intelligence and a lower risk of several diseases.

4. Omega-3s Can Improve Risk Factors for Heart Disease

Omega-3s improve numerous heart disease risk factors.

These benefits address:

  • Triglycerides:
    Omega-3s can cause a major reduction in triglycerides, usually in the range of 15–30%.
  • Blood pressure:
    Omega-3s can reduce blood pressure levels in people with high blood pressure.
  • “Good” HDL cholesterol:
    Omega-3s can raise “good” HDL cholesterol levels
  • Blood clots: Omega-3s can keep blood platelets from clumping together. This helps prevent the formation of harmful blood clots.
  • Plaque: By keeping your arteries smooth and free from damage, omega-3s help prevent the plaque that can restrict and harden your arteries.
  • Inflammation: Omega-3s reduce the production of some substances released during your body’s inflammatory response.

However, omega-3 supplements do not seem to reduce your risk of heart attacks or strokes.

5. Omega-3s Can Reduce Symptoms of ADHD in Children

Attention deficit hyperactivity disorder (ADHD) is a behavioral disorder characterized by inattention, hyperactivity and impulsivity. Omega-3 supplements can reduce the symptoms of ADHD in children.

6. Omega-3s Can Reduce Symptoms of Metabolic Syndrome

Metabolic syndrome is a collection of conditions. It includes central obesity — also known as belly fat — as well as high blood pressure, insulin resistance, high triglycerides and low “good” HDL cholesterol levels. Omega-3 fatty acids can improve insulin resistance, inflammation and heart disease risk factors in people with metabolic syndrome.

7. Omega-3s Can Fight Inflammation

Inflammation is a natural response to infections and damage in your body. Therefore, it is vital for your health. However, inflammation sometimes persists for a long time, even without an infection or injury. This is called chronic — or long-term — inflammation. Omega-3s can reduce chronic inflammation, which can contribute to heart disease, cancer and various other diseases.

8. Omega-3s Can Fight Autoimmune Diseases

Omega-3 fatty acids can help fight several autoimmune diseases, including type 1 diabetes, rheumatoid arthritis, ulcerative colitis, Crohn’s disease and psoriasis.

9. Omega-3s Can Improve Mental Disorders

People with mental disorders often have low blood levels of omega-3 fats. Improving omega-3 status seems to improve symptoms.

10. Omega-3s Can Fight Age-Related Mental Decline and Alzheimer’s Disease

Several studies link higher omega-3 intake to decreased age-related mental decline and a reduced risk of Alzheimer’s disease.

11. Omega-3s May Help Prevent Cancer

Omega-3 intake may decrease the risk of some types of cancer, including colon, prostate and breast cancer.

12. Omega-3s Can Reduce Asthma in Children

Severe asthma attacks can be very dangerous. They are caused by inflammation and swelling in the airways of your lungs. Omega-3 intake has been associated with a lower risk of asthma in both children and young adults.

13. Omega-3s Can Reduce Fat in Your Liver

Omega-3 fatty acids reduce liver fat in people with non-alcoholic fatty liver disease.

14. Omega-3s May Improve Bone and Joint Health

Omega-3s may improve bone strength and joint health, potentially reducing your risk of osteoporosis and arthritis.

15. Omega-3s Can Alleviate Menstrual Pain

Omega-3 fatty acids can reduce menstrual pain and may even be more effective than ibuprofen, an anti-inflammatory drug.

16. Omega-3 Fatty Acids May Improve Sleep

Good sleep is one of the foundations of optimal health. Omega-3 fatty acids — especially DHA — may improve the length and quality of your sleep.

17. Omega-3 Fats Are Good For Your Skin

DHA is a structural component of your skin. It is responsible for the health of cell membranes, which make up a large part of your skin. A healthy cell membrane results in soft, moist, supple and wrinkle-free skin.

EPA also benefits your skin in several ways, including:

  • Managing oil production and hydration of your skin.
  • Preventing hyperkeratinization of hair follicles, which appears as the little red bumps
    often seen on upper arms.
  • Reducing premature aging of your skin.
  • Reducing the risk of acne.

Omega-3s can also protect your skin from sun damage. EPA helps block the release of substances that eat away at the collagen in your skin after sun exposure.