Tag: Milligram

Explore our medication guides and pharmacology articles within this category.

Is 1000 IU the same as 1000 mg? Unraveling Medical Units

Oct 9, 2025 •

4 min read

About half of all US adults take dietary supplements [1.9.1]. A common point of confusion on labels is dosage units: **is 1000 IU the same as 1000 mg?** The answer is a definitive no, and understanding why is critical for your health and safety.

Which one is bigger, IU or mg? Understanding Potency vs. Mass

Oct 9, 2025 •

3 min read

In pharmacology, International Units (IU) are used for fat-soluble vitamins like A, D, and E, as well as for hormones, vaccines, and some medications [1.5.1, 1.5.3]. So, which one is bigger, IU or mg? The answer is that they measure entirely different things and cannot be directly compared.