1000 IU (25 mcg) per day increases vitamin D blood levels 10 ng/ml (25 nmol/L). 2000 IU (50 mcg) per day increases vitamin D blood levels 20 ng/ml (50 nmol/L). If the vitamin D blood test was 30 ...
Fortified cereal: 1 serving contains 2 mcg. Diet and sun exposure are the two ways people ... Our tester found it tastes like ...