- published: 06 Mar 2015
- views: 32952
Cod liver oil is a nutritional supplement derived from liver of cod fish (Gadidae). As with most fish oils, it has high levels of the omega-3 fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Cod liver oil also contains vitamin A and vitamin D. It has historically been taken because of its vitamin A and vitamin D content. It was once commonly given to children, because vitamin D has been shown to prevent rickets and other symptoms of vitamin D deficiency.
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 during the manufacture of fish meal.
Though similar in composition to fish oil, cod liver oil has higher concentrations of vitamins A and D. According to the United States Department of Agriculture, a tablespoon (4 drams or 15 ml) of cod liver oil contains 4080 μg of retinol (vitamin A) and 34 μg of vitamin D. The Dietary Reference Intake of vitamin A is 900 μg per day for adult men and 700 μg per day for women, while that for vitamin D is 15 μg per day. The "tolerable upper intake levels" are 3000 μg/day and 100 μg/day respectively, so people consuming cod liver oil as a source of omega-3 fatty acids should pay attention to how much vitamin A and vitamin D this adds to their diet.
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Cod Liver Oil-Great Big Sea.m4v
I'm a young married man and I'm tired of me life
For lately I married an ailing young wife,
She does nothing all day, only sits down and sigh
Saying I wish to the lord that I only could die.
Oh doctor, dear doctor, oh doctor De'Jung
Your cod liver oil is so pure and so strong
I'm afraid of me life, I'll go down in the soil
If me wife don't stop drinking your cod liver oil.
Till a friend of me own came to see me one day
And he told me my wife was just pining away
But he afterwards told me that she would get strong
If I buy her a bottle from Dr De'Jung.
Oh doctor, dear doctor, oh doctor De'Jung
Your cod liver oil is so pure and so strong
I'm afraid of me life, I'll go down in the soil
If me wife don't stop drinking your cod liver oil.
So I bought her a bottle, t'was just for to try
And the way that she scoffed it you'd swear she was dry
I bought her another, it went just the same
Till I owned she's got cod liver oil on the brain.
Oh doctor, dear doctor, oh doctor De'John
Your cod liver oil is so pure and so strong
I'm afraid of me life, I'll go down in the soil
If me wife don't stop drinking your cod liver oil.
Me house it resembles a big doctor's shop
With bottles and bottles from bottom to top
And when in the morning the kettle do boil
You'd swear it was singing out cod liver oil.
Oh doctor, dear doctor, oh doctor De'John
Your cod liver oil is so pure and so strong
I'm afraid of me life, I'll go down in the soil