What is the Difference Between Magnesium and Magnesium Oxide?

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Magnesium and magnesium oxide are both forms of the essential mineral magnesium, but they differ in their properties, bioavailability, and uses.

Magnesium is a mineral that is crucial for various bodily processes, including blood sugar regulation, nerve function, energy production, and DNA synthesis. It is found in numerous food sources and can also be taken as a dietary supplement.

Magnesium oxide is an inorganic salt of magnesium formed with ions of magnesium and oxygen. It is one of the most common forms of magnesium found in dietary supplements. However, it has a lower bioavailability than other forms of magnesium, meaning it is less easily absorbed by the body.

The main differences between magnesium and magnesium oxide are:

  • Bioavailability: Magnesium oxide has a lower bioavailability than other forms of magnesium, making it less easily absorbed by the body.
  • Uses: Magnesium oxide is often used to treat migraines and constipation. It may also help reduce blood pressure, blood sugar, and anxiety in certain populations. However, due to its low absorption rate, it is not the best choice for raising magnesium levels in the body.
  • Side Effects: Magnesium oxide may cause digestive effects like diarrhea due to its low absorption rate in the intestines.

In summary, magnesium oxide is a form of magnesium with lower bioavailability and is mainly used to treat specific conditions like migraines and constipation. It is not the best choice for raising magnesium levels in the body due to its low absorption rate.

Comparative Table: Magnesium vs Magnesium Oxide

Here is a table comparing the differences between magnesium and magnesium oxide:

Feature Magnesium Magnesium Oxide
Classification Element; Alkaline Earth Metal Ionic Compound
Appearance Shiny, Silvery Gray White Powder
Source Mineral Deposits, Seawater, Organic Food, Foods Rich in Fiber Combining Magnesium and Oxygen
Melting Point 650°C 2800°C
Molar Mass 24 g per mol 4.304 g per mol
Conductor or Insulator Conductor Insulator
Properties Malleable, Ductile, Shiny, Influences Over 300 Enzymatic Reactions in the Body Hygroscopic, Forms with Ions of Magnesium and Oxygen, Can be Found Naturally as Periclase

Magnesium is a chemical element and an alkaline earth metal found in group 2 of the periodic table of elements. It can form many basic compounds and often serves as a conductor. Magnesium oxide, on the other hand, is an ionic compound formed when magnesium combines with oxygen. It is a white powder that can be broken down through decomposition. Magnesium oxide serves as an insulator and is commonly used as a magnesium supplement.