Burns interrupt integrity, continuity and protective function of the skin. Burns lead to state of hypermetabolism and catabolism, because of hormon secretion such as cortisol, adrenaline and glucagon. Energy consumption increases up to 100% comparing to state prior to injury. Catecholamines have a catabolic effect on skeletal muscles and decrease lean muscle mass. Several ways of calculating energy needs are available for burned patients. One of the methods is indirect calorimetry, but Curreri or Harris-Benedict formula could also be used. Estimated caloric intake is around 20-30 kcal/kg daily. Main source of energy are carbohydrates, which help maintain proteins. If patient cannot tolerate increased carbohydrate quantity, insulin can be added. Recommendation for protein intake, in burned patients, is 2 g/kg daily. Amino acid glutamine is added additionally to improve outcome. Micronutrients, which must be compensated, are vitamin A, C, E and K and minerals iron, copper and zinc. There are two different ways of feeding, parenteral and enteral. Parenteral nutrition is used when enteral is not possible or at the beginning of the treatment. There are numerous complications related to central venous catheter, which is used for application of parenteral nutrition. Also, there is higher chance of getting infection related to central venous catheter and hyperglycemia. Enteral nutrition begins 24-48 hours after the injury, through nasogastric tube. Enteral nutrition has lower chance of getting infections and it preserves the integrity and function of the gastrointestinal system. High-protein solutions, which provide enough protein to heal wounds and preserve muscles mass, are often used.