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  • IU to micrograms

    The USDA nutrient data lab reports Vitamin D in IU. The National Academy of Sciences reports the amount of Vitamin D in micrograms. Do you know what IU is and how it can be converted to micrograms?

    Thank you for your assistance.

  • #2
    Re: IU to micrograms

    That is different conversion for every type of drug or vitamin.

    I did some searching, and found that for Vitamin D, 1 IU = 0.025 microgram

    IU * 0.025 = micrograms

    That is only for Vitamin D, and while I found that information on a trusted site, I am not sure it is correct.

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    • #3
      Re: IU to micrograms

      Thank you very much Robert.

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      • #4
        Re: IU to micrograms

        What about Vitamin A?

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        • #5
          Re: IU to micrograms

          The daily need of Vit. A is 1 mg which are 1000 micrograms which are 40 000 IUs. Therefore when spoken about Vit. A there is never referred to in micrograms or IU (= International units).

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          • #6
            Re: IU to micrograms

            Vitamin A .
            What about alpha carotene and beta carotene?
            Should i use the same conversion factor for these??????

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            • #7
              Re: IU to micrograms

              Can somebody tell us the equivalent of 30 IU of Tetracycline in micrograms? Thanks. Peter M., France

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              • #8
                Re: IU to micrograms

                IU to microgram fro Vit,k,E

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                • #9
                  Re: IU to micrograms

                  1 IU of vitamin A is equal to 0.3 microgram

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                  • #10
                    Re: IU to micrograms

                    How to convert the IU into micro gram
                    Please breifly tell about the conversion formula.
                    One IU=?

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                    • #11
                      Re: IU to micrograms

                      Originally posted by Unregistered View Post
                      How to convert the IU into micro gram
                      Please breifly tell about the conversion formula.
                      One IU=?
                      It is based on an agreed level of activity in the body. It is different for every substance. In some cases (Vitamin A) there are two or more forms which work the same in the body, but have different levels of activity, and therefore relation between IU and milligrams. You simply have to look it up, there is no standard conversion, it is substance by substance.

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                      • #12
                        Re: IU to micrograms

                        How to convert Lycopene (10%) too microgram to IU

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                        • #13
                          Re: IU to micrograms

                          Originally posted by monika@alloneness.com View Post
                          The daily need of Vit. A is 1 mg which are 1000 micrograms which are 40 000 IUs. Therefore when spoken about Vit. A there is never referred to in micrograms or IU (= International units).
                          This is not correct expically if you are a woman who is pregnant or lactating!! geting too much vit A is dangours!

                          The statndard measurement of vit A is RAE (retinol actiivity equivalents), wich is baced potency and sorce

                          1 mcg of retional (preformed vit A)=1 mcg RAE;
                          12 mcg beta-carotene= 1 mcg RAE
                          and 24 mcg alpha-caroten= 1 mcg RAE

                          1 mcg (RAE) = 3.3 IU

                          1,000 mcg REA = 1mg RAE= 3,300 IU

                          you must first make sure that the mg is reffering to or converted to mg RCA to find the IU amount.

                          this conversion may not work on all types of vits becuse genuarly speaking mg is wight and IU is a unit and can not syimply be cnverted. it would depend on the type of vit, or mineral and it's form.
                          __________________________________________________ _____

                          More importan info on vit A

                          preformed A (found in animal products such as eggs,cheese,milk and liver) is used directly by the body. This is the type of vit A you shuld monter the most, as it is the type that has been found to cause birth defects and liver fealure in high doses. (trhough you still need preformed vit A it is importan not to get to much.)

                          The other type of vit A is Provitamin A (found in fruit and vegies, two common types are beta-carotene and alph-carotene) which your body converts into vit A

                          beware of liver expicaly if you are prego as beef liver contains 12 times the RDA of vit A in just one serving
                          ________________________________________

                          How much is too much?

                          In the US (other cuntrys RDA levels may verry, but likly not much):

                          (acordding to the APA)
                          The recommened dayly allowance (RDA) combined vit A for age 19-50 is 770 mcg or 2,541 IU with a tolerable upper intake level (UT) or mazum tolrance of 3,000 mcg or 9,900 IU (less if you are not prego/ lactacting)

                          The us govement however conserders 10,000 IU to be the max amount combined each day for woman over 19 and 9,240 for woman under 19.

                          for the list of vitamin & mineral gidelines (for women) go to the American Pregnancy Association (it gives gidelines for all woman age 14-50)
                          ________

                          MEN

                          Im not sure what the max is for a man is, men do genuraly need slightly more vit A than whemen. However, I'm quite sure that 40,000 IU is to much expacilly if you are not an athlete.

                          though you do not have to wory about birth deffects there are sevaral other problems that can be caulsed by over doseing on Vit A

                          the aproxament amount of vit A in a 2000 cal diet (for men and wman) is 5000 IU between 1,515.15 mcg and 1,515.16 mcg

                          Men genarly tend to eat more animial products so more of that vit A is likely performed A. in order to be sure you are not geting to much vit A absorbed avoid napping or sitting infront of the tv right after meals. Insted try taking a 15-20 min walk or doing some things arond the house first.
                          and don't be afraid of those veggies lol


                          hope this helps stay helthy!

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                          • #14
                            Re: IU to micrograms

                            please help me to coverting 1 IU of heparin to milligrams.

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                            • #15
                              Re: IU to micrograms

                              Hi,
                              could someone please tell me what 800 iu of folic acid is into micrograms please?
                              i can't find any answers on the internet.

                              Thanks

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