Show Bource Source rre of f Vitamin AAs A AAs AAs As early as 1800 1500 B C it was wasknown wasknown waknown known that eating generoua generous quan- quan quantities quantities quantitles - - tities of animal livers liven which wblch In Inelude Inelude Includa elude vitamin A improved vision visionin visionIn visloiin in dim light . . Other common aource sources sourcesof sourceof . t of vitamin Yilamin A ara are y yeUow yellow llow and leafy leafypeen leafygreen leaf : green peen vegetables egg egl yolks andwhole and andwhole an < whole milk |