what are the ingredients in a prenatal vitamin?
['400micrograms (mcg) of folic acid.', '400 IU of vitamin D.', '200 to 300 milligrams (mg) ofcalcium.', '70 mg of vitamin C.', '3 mg of thiamine.', '2 mg of riboflavin.', '20 mg of niacin.', '6 mcg of vitamin B12.']