One Nutrition Pure Magnesium Bisglycinate Capsules support normal bone health and the nervous system. They also help reduce tiredness and fatigue, and support energy levels. This highly bioavailable form of Magnesium is gentle on the bowel and does not cause gastrointestinal upset or have a laxative effect. It's ideal for those who exercise regularly, as it can help relax muscles and prevent cramps. Magnesium bisglycinate is also involved in the production of glutathione, which works synergistically with magnesium to promote good quality sleep. Magnesium levels can be depleted by chronic stress and intense exercise, making this supplement a good option for those who need extra support.