System Vitans sport magnesium citrate +400 from Nutritional System is a food supplement based on a formula with high magnesium absorption, ideal for moments of high physical intensity. It has been specially developed to help reduce tiredness and fatigue, the risk of cramps, and improve muscle discomfort. Active ingredients of Vitans Magnesium Citrate + 400 Magnesium is a mineral that plays a primary role in muscle contraction and helps reduce the risk of cramps, tiredness, fatigue, as well as muscle discomfort as a result of excessive nervous and muscular excitement, contributing to electrolyte balance. Vitamin C: is a vital vitamin for athletes as it contributes to the normal functioning of the immune system during and after intense physical exercise. Vitamin B6 helps reduce tiredness and fatigue. Vitamin B1 contributes to normal energy metabolism. Vitamin D3 contributes to the normal absorption and utilization of calcium and phosphorus. The most common source of vitamin D is sunlight. There are very few foods that contain vitamin D naturally, but for that reason it is added to various food sources. Vitamin B12 helps reduce tiredness and fatigue. It is recommended to take 1 tablet per day during periods of high intensity activity. Dissolve in a glass of water (150 ml) and drink once it has stopped bubbling. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. Do not exceed the expressly recommended daily dose. People under medical supervision should consult their doctor before consuming a dietary supplement. Keep out of the reach of children. Store in a cool, dry place.