Examples of osmotic laxatives include milk of magnesia (which also softens stools), sodium phosphates and magnesium citrate.8 Although very effective, they should be used with caution in older ...

Even with a varied diet, vitamin or mineral deficiency isn't uncommon, specifically when it comes to magnesium. An estimated 75% of US adults aren’t getting enough magnesium in their diets.

Hard stool happens when your colon absorbs too much water from your stool. This commonly occurs with constipation, defined as having fewer than three bowel movements per week. Common causes include ...