Cod liver oil
Cod liver oil is a nutritional supplement derived from liver of cod fish. It has high levels of the omega-3 fatty acids, EPA and DHA, and very high levels of vitamin A and vitamin D. It is widely taken to ease the symptoms of arthritis and for other health benefits. It was once commonly given to children, because the high levels of vitamin D in cod liver oil have been shown to prevent rickets.
Manufacture
Cod liver oil was traditionally manufactured by filling a wooden barrel with fresh cod livers and seawater and allowing the mixture to ferment for up to a year before removing the oil. Modern cod liver oil is made by cooking the whole cod body tissues of fatty fish during the manufacture of fish meal.
As punishment
Cod liver oil should not be confused with castor oil. Castor oil is a violent laxative, and has traditionally been a punishment for naughty children. Cod liver oil was used as punishment only because of its terrible taste
- More information is available at [ Wikipedia:Cod_liver_oil ]
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