Magnesium carbonate is another popular, bioavailable form of magnesium that, when combined with hydrochloric acid in the stomach, converts to magnesium chloride. It’s a good choice for people suffering from indigestion and acid reflux because of its antacid properties.
The worst forms of magnesium
Magnesium oxide is the most commonly available form of magnesium in pharmacies, but it is not chelated and has lower absorption compared to the preparations mentioned above.
Magnesium sulfate
Magnesium sulfate, also known as Epsom salt, is an excellent remedy for constipation, but it is a dangerous source of magnesium in the diet because it is easy to overdose on it.
Magnesium glutamate and aspartate
Avoid these two forms of magnesium completely. Glutamic acid and aspartic acid are components of the dangerous artificial sweetener aspartame, and both become neurotoxic when not bound to other amino acids.
