8 Huge Benefits of Cod Liver Oil (& Why I Started Taking It)

Cod liver oil has been used for centuries as a preventative measure against vitamin D deficiency, also called rickets. Historically, people living in northern Europe have relied on cod liver oil as a vitamin D supplement during the winter months when sunlight is scarce.
The oil is extracted from the livers of Atlantic cod and then filtered for purity. The leading producers of cod liver oil supplements are northern countries like Norway and Iceland, but you can find it in most supermarkets and health food stores. PeopCod liver oil is an excellent source of vitamin A and vitamin D. Vitamin A is a vital nutrient for immune system function, cellular growth, eye health, and reproduction. It’s also rich in omega-3 fatty acids, which decrease blood clot formation and reduce inflammation in the body.le take cod liver oil capsules to help with arthritic joint pain and cardiovascular disease prevention.Cod liver oil is an excellent source of vitamin A and vitamin D. Vitamin A is a vital nutrient for immune system function, cellular growth, eye health, and reproduction. It’s also rich in omega-3 fatty acids, which decrease blood clot formation and reduce inflammation in the body. 
Even more so, cod liver oil’s high vitamin D content is what distinguishes it from other fish oils. Scientists estimate that over a billion people worldwide are vitamin D deficient or insufficient.
Vitamin D deficiency is linked to bone fractures in the elderly and abnormal brain development in offspring. It may also lead to the development of metabolic syndrome, which involves the combination of high blood pressure, high glucose levels, and high cholesterol. This can contribute to coronary heart diseasediabetes, and cancer.
https://www.webmd.com/diet/cod-liver-oil-health-benefits