Cod Liver Oil Benefits for Women and Men

Cod liver oil is one of the most popular fish oil supplements people like to use. One of the reasons why is because of its many benefits.

Cod liver oil benefits include the following:

Heart health
Improved blood circulation
Reducing inflammation and arthritis
Eye health and improved vision
Cognitive issues
Provides a good percentage of vitamins A and D
Low mercury levels
Skin and hair

This article will take a closer look at each of the cod liver oil benefits. In addition, I’ll include a nutrition chart comparing the different fish oil supplements.

Disclaimer: Some of the links in this article are affiliate links which means I may earn a small commission at no extra cost to you. As an Amazon associate I earn from qualifying purchases.

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Nutrition Comparison of Fish Oil Supplements

Nutrient	Cod Liver Oil (1 Tbsp)	Sardine Oil (1 Tbsp)	Menhaden Oil (1 Tbsp)	Salmon Oil (1 Tbsp)	Herring Oil (1 Tbsp)
Calories	41	123	123	123	123
Omega-3	0.84 g	3.10 g	3.62 g	4.66 g	1.50 g
Total Fat	4.5 g	14 g	14 g	14 g	14 g
Saturated Fat	1.0 g	4.1 g	4.1 g	2.7 g	2.9 g
Cholesterol	25 mg	97 mg	71 mg	66 mg	104 mg

Nutrient sources ¹ ² ³ ⁴ ⁵ ⁶

Due to its less healthy fat, cod liver oil contains less calories, total fat, saturated fat and cholesterol than the other omega-3 fish oils. For people consuming omega-3 rich fish, cod liver oil may provide the better benefits.

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What is Cod Liver Oil?

Cod liver oil is extracted from the livers of cod instead of their flesh due to the higher concentration of fatty acids in the liver. It is used as a dietary supplement and provides the omega-3s eicosapentaenoic acids (EPA), docosahexaenoic acids (DHA), vitamin A and D.

A tablespoon contains 4,080 mcg of vitamin A, 34 mcg (1,360 IU) of vitamin D and 0.84 grams of omega-3s ⁷.

The flesh of a cod is lean compared to other fatty fish. The liver of a cod is larger than a typical fish and is where its fatty acids are located. Since it is fish liver oil, it also benefits the absorption of vitamin A and D.

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Cod Liver Oil Benefits

Heart Health Benefits

Cod liver oil is beneficial for cardiovascular health due to its effects on triglyceride levels, blood pressure, and cholesterol balance, which contribute to overall heart health.

Reducing Triglyceride Levels

Cod liver oil helps lower triglyceride levels in the blood. Elevated triglycerides are associated with an increased risk of heart disease.

The omega-3 fatty acids in cod liver oil, particularly EPA and DHA, are known to reduce triglyceride production in the liver.

Studies have shown that regular intake of cod liver oil can lead to significant reductions in triglyceride levels. This makes it a valuable supplement for individuals looking to manage their lipid profiles and reduce cardiovascular risk.

Improving Blood Pressure

Regular consumption of cod liver oil may help in maintaining healthy blood pressure levels. The omega-3 fatty acids present in the oil have vasodilatory effects, which help widen blood vessels and improve blood flow.

This may help prevent hypertension, a major risk factor for heart disease. Clinical trials have demonstrated that the anti-inflammatory properties of omega-3s in cod liver oil contribute to lowering both systolic and diastolic blood pressure.

Therefore, this supplement can be an effective natural remedy for those managing high blood pressure.

Balancing Cholesterol

Cod liver oil assists in balancing cholesterol levels, thereby supporting cardiovascular health. Omega-3 fatty acids in the oil help increase levels of HDL (good cholesterol) while reducing LDL (bad cholesterol).

This shift in cholesterol balance is essential for preventing plaque buildup in arteries, which can lead to atherosclerosis and heart disease. Research indicates that the regular use of cod liver oil can significantly improve the cholesterol profile, promoting overall heart health.

The presence of vitamins A and D in the oil also contributes to its beneficial effects on cholesterol metabolism.

A study just released in 2021 examined the effect of cod liver oil on cholesterol. 600 people were split into two groups, one group receiving the oil and the other group a placebo. The oil group lowered total cholesterol almost 20 more than the placebo group.

The LDL cholesterol also lowered approximately 6-7 more than the placebo group. The researchers indicated the oil lowered cholesterol. However, in all cases, lifestyle changes should be the first treatment ⁸.

Cod liver oil supplements. — Cod liver oil supplements

Anti-inflammatory Effects

The anti-inflammatory properties of cod liver oil are primarily due to its high content of omega-3 fatty acids, particularly EPA and DHA.

Inflammation is a key component of many immune responses, and chronic inflammation can be harmful. Omega-3s reduce the production of inflammatory molecules like eicosanoids and cytokines.

EPA and DHA contribute to the formation of resolvins and protectins, which are compounds that help resolve inflammation. This can be particularly beneficial in conditions like rheumatoid arthritis, where inflammation plays a significant role.

Cod liver oil’s anti-inflammatory action contributes significantly to a healthier immune system by managing inflammation at the cellular level.

Eye Health

Cod liver oil is beneficial for maintaining eye health due to its high content of omega-3 fatty acids and vitamins A and D. These nutrients play a crucial role in protecting vision and preventing eye-related conditions.

Vitamin A is essential for good vision. It helps improve night vision and reduces the risk of cataracts and age-related macular degeneration (AMD). A deficiency in vitamin A can lead to serious eye issues.

Omega-3 fatty acids, particularly DHA, support the structure of eye cells. They help in reducing dry eyes and inflammation, which can improve overall eye comfort. Regular consumption of omega-3s is linked with a lower risk of developing AMD.

Vitamin D, also found in cod liver oil, is believed to support overall eye health by reducing inflammation. Some studies suggest that adequate vitamin D levels might help reduce the risk of AMD and other eye diseases.

Incorporating cod liver oil into one’s diet may provide these essential nutrients, contributing to the maintenance and protection of vision.

Cognitive Functions

Cod liver oil has been shown to have a positive impact on brain development and may play a role in preventing dementia. These benefits are largely due to its rich content of omega-3 fatty acids and vitamins.

Brain Development

Cod liver oil is rich in DHA (docosahexaenoic acid), an omega-3 fatty acid essential for brain development. DHA is crucial during pregnancy and early childhood as it contributes to the formation and function of brain cells.

Studies have indicated that maternal consumption of cod liver oil can lead to better cognitive outcomes in children. Components like vitamin A and vitamin D in cod liver oil also support neuronal growth and neurotransmitter activity, essential for cognitive processes.

Regular intake of cod liver oil during early developmental stages might enhance learning capabilities and memory. It supports the overall structural and functional integrity of the brain.

Dementia Prevention

Omega-3 fatty acids found in cod liver oil, particularly EPA (eicosapentaenoic acid) and DHA, have been linked to a lower risk of cognitive decline in older adults. These acids can reduce inflammation and oxidative stress in the brain, which are factors involved in dementia.

Several studies suggest that regular supplementation with cod liver oil could slow down the progression of dementia symptoms. The presence of antioxidants, such as vitamin E, also contributes to protecting brain cells from damage.

In addition, the anti-inflammatory properties of omega-3 fatty acids help maintain vascular health, ensuring proper blood flow to the brain. This minimizes the risk of conditions like vascular dementia.

Mercury Levels

The FDA and EPA have issued warnings and suggestions regarding mercury levels in fish and how often they should be consumed ⁹.

They established a list of the following:

Fish to avoid
Good choices
Best fish

Cod fish and most of the fish used for omega-3s are listed on the FDA’s best choices regarding mercury levels.

Mercury warnings can change over time or affect only a particular area or state. Please check with your local EPA and FDA for the current recommendations ¹⁰.

Fish Oil benefits including cod liver oil.

Skin and Hair Health

Cod liver oil offers multiple benefits for skin and hair health which many women ask about. Although, the women’s benefits for skin and hair also pertain to men.

Rich in vitamin A and vitamin D, it helps maintain a healthy complexion. These vitamins aid in skin cell regeneration and repair, keeping the skin smooth and hydrated.

The omega-3 fatty acids in cod liver oil can reduce inflammation and dryness. This can be beneficial for conditions like eczema and psoriasis.

For hair, the nutrients in cod liver oil support hair growth and strength. EPA and DHA, specific types of omega-3s, nourish hair follicles and promote a healthier scalp.

Regular use of cod liver oil may result in shinier, thicker hair. Some users report reduced hair breakage and split ends.

Vitamin E present in cod liver oil acts as an antioxidant, protecting skin and hair from environmental damage.

It’s important to note that while cod liver oil can enhance skin and hair health, it should be used as part of a balanced diet. Overconsumption can lead to unwanted side effects due to high levels of vitamin A and D.