9 Science-Backed Benefits of Cod Liver Oil

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Cod liver oil is a form of fish oil supplement.

Like unchanging fish oil, it’s high in omega-3 greasy acids, that are related to many health benefits, including reduced inflammation and revoke blood vigour (1, 2).

It also contains vitamins A and D, both of that yield many other health benefits.

Here are 9 scientifically upheld advantages of cod liver oil.

1. High in Vitamins A and D

Most cod liver oil is extracted from a liver of Atlantic cod.

Cod liver oil has been used for centuries to soothe corner pain and yield rickets, a illness that causes frail skeleton in children (3).

Although cod liver oil is a fish oil supplement, it’s utterly opposite than regular fish oil.

Regular fish oil is extracted from a hankie of greasy fish like tuna, herring, anchovies and mackerel, while cod liver oil is extracted from a livers of cod.

The liver helps store fat-soluble vitamins like vitamins A and D, that give cod liver oil an considerable healthful profile.

One teaspoon (5 ml) of cod liver oil provides a following (4):

  • Calories: 40
  • Fat: 4.5 grams
  • Omega-3 greasy acids: 890 mg
  • Monounsaturated fat: 2.1 grams
  • Saturated fat: 1 gram
  • Polyunsaturated fat: 1 gram
  • Vitamin A: 90% of a RDI
  • Vitamin D: 113% of a RDI

Cod liver oil is impossibly nutritious, with a singular teaspoon providing 90% of your daily mandate for vitamin A and 113% of your daily requirements for vitamin D.

Vitamin A has many roles in a body, including progressing healthy eyes, mind duty and skin (5, 6).

Cod liver oil is also one of a best food sources of active vitamin D, that has an critical purpose in progressing healthy skeleton by controlling calcium fullness (7).

Summary: Cod liver oil is really healthful and contains scarcely all of your daily mandate for vitamins A and D.

2. May Reduce Inflammation

Inflammation is a healthy routine that helps a physique quarrel infections and reanimate injuries.

Unfortunately, in some cases, inflammation can continue during a low turn for prolonged durations of time.

This is famous as ongoing inflammation, that is damaging and might boost a risk high blood vigour and several diseases, such as heart illness (8, 9, 10).

The omega 3-fatty acids in cod liver oil might revoke ongoing inflammation by suppressing a hormones that foster it. These embody TNF-α, IL-1 and IL-6 (1).

Cod liver oil also contains vitamins A and D, that are absolute antioxidants. They can revoke inflammation by contracting and neutralizing damaging giveaway radicals (11, 12).

Interestingly, studies also uncover that people who are deficient in vitamins A and D are during a larger risk of ongoing inflammation (13, 14, 15).

Summary: The omega-3 greasy acids in cod liver oil might assistance conceal hormones that foster ongoing inflammation. Cod liver oil is also a good source of vitamins A and D, both of that have antioxidant properties.

3. May Improve Bone Health

It’s impossibly critical to maintain healthy bones as we age.

This is given we start losing bone mass after age 30. This can lead to fractures after in life, generally in women after menopause (16, 17, 18).

Cod liver oil is a good dietary source of vitamin D and might revoke age-related bone loss. That’s given it helps your physique catch calcium, that is a required vegetable for clever bones, from a tummy (7, 19).

In fact, studies uncover that when accompanied by a diet high in calcium, holding a vitamin D addition like cod liver oil can revoke bone detriment among adults and strengthen frail skeleton in children (20, 21, 22).

Getting adequate vitamin D from dishes and supplements like cod liver oil is especially important for people who live distant divided fom a equator, as they are incompetent to make vitamin D for adult to 6 months of a year (23).

Summary: Cod liver oil is abounding in vitamin D, that helps with progressing clever and healthy bones. It is generally critical for people who live distant from a equator.

4. May Reduce Joint Pain and Improve Rheumatoid Arthritis Symptoms

Rheumatoid arthritis is an autoimmune illness that’s characterized by repairs to a joints.

There is now no reanimate for rheumatoid arthritis, though studies advise that cod liver oil might revoke corner pain and urge symptoms of rheumatoid arthritis like corner rigidity and flourishing (24, 25).

In one study, 43 people took a 1-gram plug of cod liver oil daily for 3 months. They found it reduced symptoms of rheumatoid arthritis, such as morning stiffness, pain and flourishing (24).

In another investigate in 58 individuals, researchers investigated if holding cod liver oil would revoke pain from rheumatoid arthritis adequate to assistance patients revoke their use of anti-inflammatory medications.

By a finish of a study, 39% of people who took cod liver oil absolutely reduced their use of anti-inflammatory remedy by over 30% (25).

It is believed that a omega-3 greasy acids in cod liver oil assistance reduce inflammation in a joints and strengthen opposite repairs (24).

Summary: Thanks to cod liver oil’s ability to revoke inflammation, it might assistance revoke corner pain in those who humour from rheumatoid arthritis.

5. May Support Eye Health

Vision detriment is a outrageous health problem, inspiring over 285 million people worldwide (26).

There are many reasons because people remove their vision, though dual of a heading causes are glaucoma and age-related macular lapse (AMD).

Both of these diseases can outcome from ongoing inflammation.

However, a omega-3 greasy acids and vitamin A in cod liver oil have been shown to strengthen opposite eye diseases caused by inflammation (6, 27).

Studies in animals have found that omega-3 greasy acids revoke risk factors for glaucoma, such as eye vigour and haughtiness repairs (28, 29, 30).

In another investigate in 666 people, researchers found those who ate a many omega-3 greasy acids had a 17% revoke risk of early AMD and 41% revoke risk of late AMD (27).

Furthermore, diets high in vitamin A might revoke a risk of glaucoma and AMD, compared to diets revoke in vitamin A (31, 32).

In one investigate in 3,502 people aged 55 and over, researchers found that people who consumed a many vitamin A had a many revoke risk of glaucoma than those who ate a slightest vitamin A (6).

Although vitamin A is good for eye health, it’s not endorsed to take high doses of it, as it might means vitamin A toxicity.

Summary: Cod liver oil is a good source of omega-3 and vitamin A, both of that might strengthen opposite prophesy detriment from inflammatory eye diseases like glaucoma and age-related macular lapse (AMD).

6. May Reduce Heart Disease Risk

Heart illness is a heading means of genocide worldwide, inspiring over 17.5 million people annually (33).

Studies have shown people who regularly eat fish have a many revoke risk of heart disease. This outcome can be attributed to a omega-3 greasy poison calm (34, 35).

Omega-3s have been shown to have many advantages for your heart, including:

  • Reducing triglycerides: Omega-3 greasy acids in cod liver oil might revoke blood triglycerides by 15–30% (36, 37, 38).
  • Lowering blood pressure: Many studies have found that omega-3 greasy acids might lower blood pressure, generally in people with high blood vigour and high cholesterol (2, 39).
  • Increasing HDL cholesterol: Omega-3 greasy acids in cod liver oil can raise good HDL cholesterol, that is related to a revoke risk of heart illness (40, 41).
  • Preventing board formation: Animal studies have found that cod liver oil might conceal hormones that assistance form plaques in a arteries. Plaque buildup can slight a arteries and lead to a heart conflict or cadence (42, 43).

While holding fish oil supplements like cod liver oil might revoke risk factors for heart disease, there is tiny justification that it can forestall heart illness or strokes (44).

Unfortunately, there are few studies on cod liver oil and heart disease, as many studies systematise cod liver oil as unchanging fish oil.

Thus, some-more specific investigate on cod liver oil and heart illness risk factors are indispensable to make a transparent couple between a two.

Summary: Cod liver oil might assistance revoke risk factors for heart disease. Studies privately on cod liver oil and heart illness risk factors are needed, as many studies organisation cod liver oil with unchanging fish oils.

7. May Improve Symptoms of Anxiety and Depression

Anxiety and basin are common illnesses that together impact over 615 million people worldwide (45).

Interestingly, studies advise there might be a couple between ongoing inflammation and stress and basin (46, 47)

Many studies have found that a omega-3 greasy acids in cod liver oil can revoke inflammation and reduce symptoms of anxiety and basin (48, 49).

A vast investigate including 21,835 people found that people who took cod liver oil frequently had fewer symptoms of basin alone or total with stress (50).

Nevertheless, while omega-3 greasy acids assistance revoke symptoms of stress and depression, their altogether outcome seems small.

In an research of 26 studies including 1,478 individuals, omega-3 supplements were customarily somewhat some-more effective than placebos during shortening symptoms of basin and stress (51).

Moreover, many studies have also found a couple between increasing blood levels of vitamin D and a rebate in symptoms of basin (52, 53).

How it reduces symptoms of basin is still unclear, though some studies advise that vitamin D can connect to receptors in a mind and kindle a recover of mood-improving hormones like serotonin (53, 54, 55).

Summary: The omega-3 greasy acids and vitamin D in cod liver oil might assistance revoke symptoms of stress and depression, though some-more studies are needed.

8. May Help Heal Stomach and Gut Ulcers

Ulcers are tiny breaks in a backing of a stomach or gut. They might means symptoms of nausea, top abdominal pain and discomfort.

They are mostly caused by bacterial infections, smoking, additional use of anti-inflammatory drugs or too many poison in a stomach (56).

Animal studies prove that cod liver oil might assistance yield ulcers, quite in a stomach and gut.

In one animal study, researchers found that low and high doses of cod liver oil helped reanimate ulcers in both a stomach and tummy (57).

Another animal investigate found that cod liver oil suppressed genes that means tummy inflammation and reduced inflammation and ulceration in a tummy (58).

While a use of cod liver oil to assistance reanimate ulcers seems promising, some-more studies in humans are indispensable to make transparent recommendations.

Summary: Cod liver oil might assistance yield ulcers in a stomach and gut, though some-more tellurian studies are indispensable before creation recommendations.

9. Easy to Add to Your Diet

Cod liver oil is impossibly easy to addition to your diet. It comes in many forms, though glass and plug forms are a many common.

There are no set discipline for cod liver oil intake, so many recommendations are formed on protected intake levels of omega-3 greasy acids, vitamin A and D.

A common sip is mostly 1–2 teaspoons, though holding adult to one tablespoon per day is customarily safe. Higher doses are not recommended, as they would outcome in additional vitamin A intake (52).

Although cod liver oil is intensely healthy, some people need to be discreet about their intake given cod liver oil can act as a blood thinner.

So check with your alloy before holding cod liver oil if we take blood vigour or blood thinning medications.

Also, profound women should check with their alloy before holding it, as high levels of vitamin A might means mistreat to a baby.

Summary: Cod liver oil is easy to addition to your diet. Stick with endorsed amounts, as additional cod liver oil might be harmful.

The Bottom Line

Cod liver oil is an impossibly healthful form of fish oil supplement. It’s really available and contains a good multiple of omega-3 greasy acids, vitamin A and vitamin D.

Cod liver oil might yield we with health advantages like stronger bones, reduced inflammation and reduction corner pain for those with rheumatoid arthritis.

If we wish to try supplementing, a common sip is 1–2 teaspoons of glass cod liver oil per day. You can also try a plug form.

If we onslaught with a unlikely ambience of either, try holding it on an dull stomach before your initial dish or with a few sips of water.

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