Posted by: carrie | 2009-08-20

cod liver oil

i' ve been giving my little dog cod liver oil, or halibut liver oil from time to time but now a friend of mine says fish oil is better than fish liver oil...whats the difference?

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Our expert says:
Expert ImageCyberVet

Dear Carrie

This conversation will get to techinical for me, best to do dome internet research

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Our users say:
Posted by: Chill | 2009-08-20

In a nutshell, cod liver oil is nearly the same as fish oil, except it contains far more vitamin A and D.

Since both of these are fat-soluble vitamins, any excess taken tends to build up in the body - they are not excreted with urine, as, for example, vitamin C is.

If taken in large quantities over a prolonged period, one can get a kind of vitamin poisoning from excessive doses of fat-soluble vitamins.

Since cod-liver oil is relatively inexpensive, and dogs like it, the key as to whether it' s good or bad would lie in the amount and frequency you give it to the dog. A small amount, now and then, is going to be fine, and it' s certainly more cost effective than all the fancy fish oil capsules on the market.

I don' t know if dogs require the two vitamins concerned - I do know that they ' manufacture'  their own vitamin C, so don' t need to be fed any - maybe the cvet can elaborate on that.

Reply to Chill

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