“My opinion (for what it’s worth) is preformed vitamin A is a medication used to treat severe cases of hypovitaminosis A and symptoms suggestive of such. It is too dangerous to use as a supplement. I use it carefully to elevate vitamin A levels. I sometimes use it to treat vitamin D toxicosis. I also use it when there is liver dysfunction. Bile salts are required for the uptake of retinol into the liver. I also use vitamin D to treat vitamin A toxicosis (along with vitamin E which seems to help).”…
http://www.uvma.org/chameleon/vitaminA.htm
http://www.uvma.org/chameleon/vitaminA.htm
