2 forms studied

Does magnesium help with irregular digestion?

Not on the evidence we can stand behind. Here is every form that has been studied for it, and what each one showed.

Form by form

Strongest first. Evidence for one salt or ester is not evidence for another, so each is rated on its own trials.

Trials used 200–400 mg · 2 studies · tested as Magnesium oxide (the only form with RCT evidence for constipation/irregular digestion)

Trials used 500–2000 mg · 4 studies · tested as magnesium oxide