Is fish liver oil a form of vitamin a?

Vit A is in fish oil: Vitamin a can be found in the liver of certain fish such as cod, and fish oil like cod liver oil is said to contain the active form of vitamin a.

Sometimes: Cod liver oil is normally very high in vitamin a. In fact, taking cod liver oil daily used to be a fairly common way to get vitamin a toxicity. Cod liver oil is experiencing a rise in popularity as many people are taking it for the omega 3 fatty acids as well as the vitamin d, so many cod liver oils now have the vitamin a removed to prevent toxicity.