What are these ? IU, Mg, MCg, RDA on Multivitamins
I was never good at GK in school and now in adulthood reading IU, Mg, MCG, RDA on multivitamin label brings back not so good old memories. If you are like me then lets learn it!
IU (International Units) is the value of effectiveness (potency)
Its very interesting and know that it is NOT a measurement of mass but how optimally the body absorbs it. There are various sources of same vitamin like Vitamin A comes from Spinach as well as Milk but both with different potency, therefore for medication purpose the standardization was needed and IU met the requirement.
IU is not same for all types of vitamins and only fat-soluble vitamins are measured in IU. Understand from this that 40 IU of Vitamin D Supplements is 1 Mcg where as 10 IU of Vitamin A Supplements is 3 Mcg. While buying vitamin supplements keep these in mind.
"IU is the value of effectiveness, efficiency or bioavailability!"
If you are Still Confused?.... then read RDA
All most all essential nutrients have RDA values also; these feature prominently on the multivitamin supplements labels. RDA is Recommended Daily Allowance (one must not ever exceed these, unless prescribed by registered doctor). It is a standardized amount of various nutrients that is required for optimum health but varies from country to county.
So if labels mention IU Mcg Mg and you cant decide then just look at the RDAs. Never overdose on any mineral supplement or vitamin as body needs to effectively remove the excess from the body and they become toxin if not.
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The information provided on this page is intended solely for educational and informative purposes, and should not be relied upon as the sole basis for making decisions about your health. For accurate and relevant guidance, please seek the advice of a qualified medical professional.