Magnesium is a mineral and electrolyte that is essential for life. It is used to treat migraine headaches, osteoporosis (bone loss), diabetes, heart problems, PMS (premenstrual syndrome), kidney stones, constipation (trouble having bowel movements), asthma and alcohol withdrawal.
A highly absorbable form of magnesium formulated to be better tolerated by the gastrointestinal tract. Magnesium chloride is very well studied and generally well tolerated.