Doctor's Best supplement contains 100 mg of highly absorbable magnesium in one capsule. Magnesium is one of the most common electrolytes in the human body, but it often requires additional supplementation.The product includes:Magnesium - in the body it is responsible for reducing the feeling of fatigue and weariness, proper protein synthesis, muscle function, nervous system and mental functions. It also affects energy metabolism. Without it, the body cannot maintain electrolyte balance or carry out cell division processes. This element also contributes to maintaining healthy teeth and bones.