Overview: Magnesium laxatives are used for occasional constipation. They work by pulling water into your intestines, which makes your poop softer and easier to pass. Diarrhea is a common side effect.

Magnesium citrate helps relieve occasional constipation by increasing water in the stool. Higher doses can cause side effects like diarrhea, cramps, or nausea. People with certain health conditions ...

Medically reviewed by Femi Aremu, PharmD Magnesium citrate is the strongest magnesium salt laxative, meaning it makes bowel movements easier.  Taking magnesium citrate can relieve constipation in 30 ...