| 1 Gram = "g" 1 Milligram = "mg" = 1/1,000g 1 Microgram = "mcg" or "µg" = 1/1,000,000g 1 International Unit = "IU" * 1 mEq = milliequivalent weight** * An IU is dependent on the potency of the substance, and each substance would have a different IU to milligram conversion. ** 1 mEq a unit of relative amount of substance used in chemistry. One equivalent weight of an element, compound, or ion is the weight in grams of that substance which would react with or replace one gram of hydrogen. Since one gram of hydrogen is very nearly equal to one mole and since hydrogen has one electron free to react with other substances, 1 Eq of a substance is effectively equal to one mole divided by the valence of the substance (the number of electrons the substance would engage in participating in the reaction). In practice, this is a large unit and measurements are more likely to be in milliequivalents (mEq or meq). Approximate mEq/mg ratios for common perscription minerals Sodium 2.3mg Potassium 3.9mg Chloride 3.55mg Calcium 2mg Phosphorus 1.55mg Iron 2.8mg Magnesium 1.2mg |