Though there is no immediate reaction on the health, prolonged use can have deleterious effects linked to cancer. It is also believed that overdoses can harm the immune system. Loyal users of Cod Liver Oil capsules, who have sworn by its legendary benefits, are now shocked by the sudden twist in the tale.
The body requires Omega -3s, since it is not capable of producing it on its own, the supply has to be from external sources. The most important source of these acids is from fish. It helps in tissue repair, for skin repair, the nerve and the immune system.
Scientists at Cardiff University have observed that cod liver oil is effective in relieving arthritis and also has beneficial effects in reducing the risks of heart disease. Cod liver oil is capable of reducing the blood clots, and lowering of the blood pressure.
According to Anna Denny, a nutrition scientist with the British Nutrition Foundation, Children best benefit , when they get Omega-3 oils from eating fish. This is because cod liver oil contains too much Vitamin A and D for a child's needs and high doses can be toxic. All the same, extensive studies are being done to suggest that fish oils improve children's concentration. It is especially beneficial for children with behavioral or learning difficulties, as conditions like autism, demand more fatty acids than normal.
However, some health experts have raised a doubt about the toxin levels in cod liver oil, that may contain pollutants and toxins which have been consumed by the fish in the sea.
An alternative to Cod liver Oil is VegEpa - in which only the Omega-3 fatty acids are extracted and filtered to maintain purity. Pregnant women should avoid taking Cod liver supplements.