Medically reviewed by Qin Rao, MD Different forms of magnesium, such as citrate and sulfate, can soften stool and improve bowel frequency.Getting regular physical activity, eating enough fiber, and ...

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.