Natures Aid Magnesium and Vitamins both contribute to normal energy yielding metabolism and the normal functioning of the nervous system. Magnesium also contributes to: Normal muscle function, The maintenance of normal bones & teeth, Normal electrolyte balance, Normal psychological function and reduction in tiredness & fatigue. Natures Aid Magnesium has been formulated using the citrate form of this mineral as studies suggest this is better absorbed. Vegetarian and Vegan. No artificial colours or flavours. FREE FROM: GM, corn, dairy, lactose, gluten, wheat, yeast, nuts, salt, soya, starch and sugar.