Choosing a Magnesium Supplement: Common Forms Explained
Magnesium supplements are sold in several forms. The word on the front of the pack is only part of the picture, so here is what the names on the label mean.
Forms you will see
- Magnesium citrate: magnesium bound to citric acid, widely available as capsules, tablets and powders.
- Magnesium glycinate: magnesium bound to the amino acid glycine.
- Magnesium oxide: a compact form that contains a high share of elemental magnesium by weight.
- Magnesium malate, taurate and others: less common forms, often found in blends.
Compare the elemental amount
The amount of elemental magnesium per serving is the number to compare. Two products can both say 500 mg on the front while supplying different amounts of the mineral itself. Check the supplement facts panel.
Serving size and format
Some products need two or three capsules per serving, which changes the cost per serving. Powders, capsules and tablets suit different routines, so choose a format you will actually use.
Check the rest of the label
Look at the other ingredients list, any allergen information and the recommended daily serving. Do not exceed the stated serving.
Food supplements should not replace a varied diet. If you are pregnant, breastfeeding, taking medication or have a medical condition, speak to your pharmacist or doctor before starting a supplement.
