Iu Meaning In Vitamins. Mu μ and μg stands for microgram. The abbreviation iu on vitamin labels means international units it is a standard used by the scientific community to measure the amount of fat soluble vitamins such as a d and e in a capsule or tablet.
Just be aware that iu is a standardized gauge of a supplement s biological activity. Many biological agents ex. Rather than measuring the mass or volume of a specific vitamin iu measures the potency and the biological effect.
0 5mg is the same as 500μg.
International units are used to quantify vitamins hormones some medications vaccines blood products and similar biologically active substances. The abbreviation iu on vitamin labels means international units it is a standard used by the scientific community to measure the amount of fat soluble vitamins such as a d and e in a capsule or tablet. The mass or volume that constitutes one international unit varies based on which substance is being measured and the variance is based on the biological activity or effect for the purpose of easier comparison across substances. 15mg of beta carotene 25 000iu of vitamin a activity.