Magnesium Oxide. Magnesium oxide is a magnesium salt with a high percentage of elemental magnesium by weight.
This guide explains its use, the label, the available evidence and the main precautions.
Magnesium Oxide – What Is It?
Magnesium oxide is a magnesium salt with a high percentage of elemental magnesium by weight.
Where is it used?
It is widely used in supplements because of its cost and high magnesium content.
What should I look for on the label?
A high elemental percentage does not necessarily mean better absorption.
What do we know from the available evidence?
It has different bioavailability and gastrointestinal effects from citrate or bisglycinate.
Safety & Precautions
It may cause diarrhoea or gastrointestinal discomfort.
Frequently Asked Questions
1. Is it necessary for everyone?
No. Its usefulness depends on the specific goal and actual need.
2. Is it better because it is more specialized?
Not necessarily.
In Brief
Magnesium Oxide is assessed by its form, dose and actual purpose of use.