<prompt> Recommended daily supplement of vitamin D3 for females is:200-500 IU500-1000 IU1000-2000 IU2000-2500 IU  <response>: Ans. is c, i.e. 1000-2000IURef: Leon Speroff 8thed, p731,734Recommended vitamin D supplementation of both males and females is 1000-2000IUdayNote: Levels of 25-hydroxy vitamin D should be measured annually in older individualsValues less than 30ngml are below normalValues less than 20ngml is an indication of definite vitamin D deficiency 