While cod liver oil and fish oil contain abundant supplies of omega-3 fatty acids, cod liver oil is much higher in two important nutrients. Vitamin A and D, both fat-soluble vitamins, are present in higher levels in cod liver oil than in fish oil. For this reason, people in colder climates may take cod liver oil in the winter when sunlight is not as prevalent as it is during the summer months.
Importance
Both cod liver oil and fish oil contain ample quantities of the two primary omega-3 fatty acids, EPA and DHA. EPA, or eicosapentaenoic acid, is the precursor of localized tissue hormones called prostaglandins that assist the body in reducing inflammation. DHA, or docosahexaenoic acid, is vital for the proper development and function of the central nervous system, including the brain and peripheral nerves. Both of these primary omega-3 fatty acids improve brain function, stress response and memory while reducing depression and modulating allergic response.
Selection
While both cod liver oil and fish oil contain ample amounts of EPA and DHA, cod liver oil is far superior when it comes to vitamin A and D, two important fat-soluble vitamins. The negative side of fat-soluble vitamins like vitamin A and D is the potential that you may take too much, resulting in toxicity. Even though reports of overdose are uncommon, pregnant women should consult their physician before taking cod liver oil.
Nutrients
Cod liver oil has the highest concentration of vitamin A of any food, approximately 1,000 IU per gram of cod liver oil, close to three times that of beef liver, which ranks second. Cod liver oil is also high in natural vitamin D3, which is the form of vitamin D that helps your body use the available calcium. Vitamin D2 is the form of vitamin D synthesized by plants.
Benefits
The benefits of cod liver oil have been known for many years and utilized as a cure-all by many people before the onset of sophisticated medicines. In many parts of the world, especially in northern regions, it was taken in the winter months when sun exposure was limited. According to the Mayo Clinic, "The sun also contributes significantly to the daily production of vitamin D, and as little as 10 minutes of exposure is thought to be enough to prevent deficiencies."
Member Comments