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.
It will not raise your D3 level or change the 25ohd level. Most doctors still do not know that they should give D3 and not D2. So 50,000iu once a week translates to 7000 iu of D3 a day. It is much better to take it on a daily basis rather than weekly if possible. (You can get D3 capsules that have 50,000 iu.).