As we celebrate the 235th birthday of our great nation, we asked a number of community leaders to share their thoughts on what the Fourth of July means to them. The Fourth of July reminds me very simply of our freedom.
Vitamin A: 1 IU is the biological equivalent of 0.3 mcg retinol, or of 0.6 mcg beta-carotene. 1  Vitamin D: 1 IU is the biological equivalent of 0.025 mcg cholecalciferol or ergocalciferol. 2  Vitamin E: 1 IU is the biological equivalent of 0.67 mg d-alpha-tocopherol, or 0.9 mg of dl-alpha-tocopherol.
1 100 Microgram in Milligram = 0.1 mcg. 2  250 Microgram in Milligram = 0.25 mcg. 3  500 Microgram in Milligram = 0.5 mcg. 4  1,000 Microgram in Milligram = 1. mcg. 5  10,000 Microgram in Milligram = 10.