Do You Need To Take Magnesium With Food?

In our latest question and answer, the pharmacist discusses whether or not magnesium supplements should be taken with food.

Feb 20, 2018

Debbie asked

Can you please tell me if you should take MagMin (magnesium) with food or doesn't it matter?

Answer

Over the counter magnesium supplements are available in a variety of salt forms including:

  • Magnesium oxide
  • Magnesium citrate
  • Magnesium L-aspartate
  • Magnesium chloride
  • Magnesium gluconate

Magnesium supplements should generally be taken with food to allow for maximum absorption. While they can be taken on an empty stomach, food generally increases the extent of absorption of magnesium products.

It is important to note that all of the different forms of magnesium contain different percentages of elemental magnesium. For example, magnesium oxide contains 60% elemental magnesium by weight while magnesium chloride contains only 12% elemental magnesium by weight.

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