Magnesium oxide: Although not as readily absorbed as magnesium citrate, magnesium oxide has been well-studied for treating constipation. This form of magnesium helps improve the regularity of ...

Studies show that magnesium citrate has a higher bioavailability (absorption rate) than magnesium oxide. Due to its higher bioavailability, magnesium citrate is often used to treat a magnesium ...

We looked into what the mineral can — and can’t — do for sleep, mental health and more. By Alice Callahan Magnesium supplements are said to help with a long list of ailments: sleep problems ...