Vitamin D3 Units To Mcg

It’s quite a sensitive & complex subject, as such we will do our best at providing a clear and concise article to clear any doubts you may have.

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Ded To Achieve 35 to 40 ng/ml (90-100 nmol/L)

Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. 10 mcg = 400 IU. 20 mcg = 800 IU.
Clinicians have access to an accurate lipid test that provides guidance. 400 IU (10 mcg) per day increases vitamin D blood levels 4 ng/ml (10 nmol/L). However, issues of insurance and health care access suggest that 800 to 1,000 IU is ample for many individuals who are not able to have their blood teste.

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What Is An International Unit?

IU stands for International units and is a unit commonly used in the measurement of medications, vaccines and vitamins.
This means that converting between international units and micrograms or milligrams is not a simple calculation and we can’t provide a converter to do this calculation for you (sorry about that). The exact measure of one IU of a substance is in fact established by international agreement for each substance 1.

How To Find Out The Conversion Value?

As an alternative, you could try contacting the drug manufacturer directly.
For a vitamin, consider contacting the vitamin manufacturer – their contact information is usually listed on the bottle. This information is from the Office of Dietary Supplements and the Ultimate Pharmacy Calculations Guide. Note that the information contained here is purely for casual interests and is not intended to replace your doctor’s advice.
Please use it at your own risk. As with all calculations where health could suffer from inaccurate conversions, you are advised to check with a health professional before taking a dosage of any vitamin or supplement. Additional resources

A vitamin converter is available on the RFA Regulatory Affairs website.
Should you be interested, we’ve covered the conversion of milligrams to milliliters (mg to ml) in an article here.

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