Magnesium contributes to a reduction of tiredness and fatigue, supports electrolyte balance, the nervous system, normal muscle function, normal psychological function and the maintenance of normal bones and teeth.

150 gram powder 

Directions: As a food supplement, stir half a level teaspoon into water and drink once daily, or as directed by your healthcare professional.

Half a teaspoon (2.5g) provides:
Magnesium Citrate 375mg