All fish contain some oil. Haddock & Scod have the least oil. Herring, Mackerel and Salmon have the most oil.
Most definitely so. So many of the health benefits attributed to fish oil,derive from their iodine content. Especially salt water fish. Iodine is our metabolism regulator, chelator of toxic heavy...
A small amount, but yes.
Fish oil supplements contain adequate amounts of iron.
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