aggregate mean values for protein , albumin , vitamin a , and phosphorus were generally acceptable , but many subjects had inadequate ( though not necessarily deficient ) values for nicotinic acid ( 74 % of subjects ) , magnesium ( 60 % ) , vitamin c ( 55 % ) , carotene ( 53 % ) , riboflavin ( 41 % ) , calcium ( 35 % ) , and zinc ( 27 % ) .
C0033684
protein
C0001924
albumin