Cod liver oil is, as its name suggests, a type of oil that is extracted from the livers of cod. This supplement is often packaged into capsules as cod liver oil and has a strong taste. Cod liver oil offers a number of health benefits, though you should be careful when taking it, as there are some potential detrimental side effects.
What Is in Cod Liver Oil?
Cod liver oil is often taken because the oil of codfish is rich in a type of fat known as omega-3 fatty acids. These fats are the most commonly used supplement in the United States that is not a vitamin or mineral, the National Center for Complementary and Alternative Medicine states. Omega-3 fatty acids cannot be made by the body and are important for regulating lipid levels, blood clotting, brain function and inflammation.
Uses
Cod liver oil is often used as a treatment for osteoarthritis, a condition caused by the wearing down of cartilage in the joints. Omega-3 fatty acids help reduce inflammation, which could explain the effectiveness of cod liver oil for arthritis. Omega-3 fatty acids are also taken to reduce the risk of heart disease and for the treatment of some psychiatric conditions.
Vitamins
The liver of cod is rich in vitamins A and D, which means cod liver oil contains these same vitamins. Vitamin A is important for the health of the eyes and for regulating gene expression, and it also plays a key role in immunity, the Linus Pauling Institute reports. It also aids in growth and in the production of new red blood cells. Vitamin D is needed to absorb calcium from the diet.
Risks
Although cod liver oil liquid capsules are generally safe to take, you must be sure to follow the directions on the packaging. Getting too much vitamin A from cod liver oil can lead to a vitamin A overdose, potentially leading to weakened and easily broken bones. High doses can also interfere with bleeding. Be sure to talk to your doctor before taking cod liver oil liquid capsules.
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