Some forms of magnesium are poorly absorbed and can pass through the system without doing a lot. For example, magnesium oxide has a low absorption rate, while forms such as magnesium glycinate, citrate and hammer are much more affordable and gentle on the stomach.
When taken into account supplements, choosing these very absorbing forms, it gives the best results, especially for those who deal with low energy, muscle seizures or bad sleep. It is not just about taking magnesium, but also to take it wisely.