Power Health Cod Oil provides vitamin A and vitamin D3, which contribute to:    Vitamin A *:    in the normal functioning of the immune system  in maintaining normal vision  in normal iron metabolism  in the process of cell specialization  Vitamin D3 *:    in the normal functioning of the immune system  in the normal functioning of the immune system in children  in the normal functioning of the muscles  in maintaining the normal condition of bones and teeth  in the process of cell division