Calculate optimal Magnesium Oxide dosages in milligrams (mg) using your body weight in kilograms (kg) or pounds (lbs). Mild, moderate, and strong Magnesium Oxide dosage options are provided.
Calculate Magnesium Oxide Dosage
Your Dosage Range
Based on your body weight of kg
Mild Dosage
mg
Moderate Dosage
mg
Strong Dosage
mg
Dosage Range Visualization
Magnesium Oxide is a poorly absorbed form of magnesium with high elemental content but low bioavailability, which functions primarily as a laxative and antacid while providing some systemic magnesium when taken in higher doses.
How to Take Magnesium Oxide
Magnesium Oxide is typically dosed at 250-500 mg elemental magnesium daily (400-800 mg of the compound), has approximately 60% elemental magnesium content but only 4-5% bioavailability, and is best used for short-term digestive support rather than addressing magnesium deficiency.