Magnesium supports the proper functioning of muscles, electrolyte balance and correct energy metabolism. It helps to maintain proper condition of bones and teeth. Magnesium supports mental fitness (memory and concentration). Magnesium, vitamin B12, niacin, folic acid, pantothenic acid and riboflavin help to reduce the feeling of tiredness and staleness. Thiamine supports the normal functioning of the heart. Proper energy metabolism is supported by: riboflavin, pantothenic acid, thiamine, biotin, niacin, vitamin B12, magnesium. Functioning of the nervous system is supported by: niacin, biotin, thiamine, riboflavin.