The NOW Foods supplement is 500 mg of calcium in the form of calcium carbonate, citrate and ascorbate and 250 mg of magnesium in the form of magnesium oxide, citrate and ascorbate. The product contains no cereals, gluten, soya, milk, eggs, fish, shellfish or nuts. As a supplement, it should be taken at a rate of two tablets per day. The product contains:Calcium - a macrominerals that are involved in, among other things.Among other things, it is involved in blood clotting, muscle contraction, hormone secretion and the conduction of bioelectrical impulses. It is also essential for the functioning of digestive enzymes, proper neurotransmission or adequate energy metabolism. Magnesium - reduces feelings of fatigue and tiredness, is responsible for proper protein synthesis, muscle function, nervous system and mental functions. It influences energy metabolism. Without it, the body cannot maintain electrolyte balance or carry out cell division processes. It also contributes to the maintenance of healthy teeth and bones.