Calculate optimal Magnesium Oxide dosages in milligrams (mg) using your body weight in kilograms (kg) or pounds (lbs). Our free dosage calculator provides personalized dose recommendations based on research data. Mild, moderate, and strong Magnesium Oxide dosage range options are provided for safe use.
Calculate Magnesium Oxide Dosage
Based on your body weight of kg
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.