Intensive sporting exertion, endurance sports, or muscle building require more nutrients. Supplementing with certain micronutrients can make an important contribution to maintaining muscle function (magnesium, calcium, potassium), energy metabolism (B vitamins), and electrolyte balance (magnesium). Amino acids are also important building blocks of all proteins in the body. Many athletes increase their muscle performance and endurance by optimally supplying the muscles with energy, as the body needs a lot of energy during long and strenuous endurance. At Fairvital, athletes especially appreciate our high-dose products such as L-Arginine (in powder form) and Caffeine 200mg capsules.