1. A liquid or gelled pasteurized or sterilized composition containing free amino acids, calcium and a digestible carbohydrate, in which free amino acids are present in a concentration between 5 and 30 g / 100 ml, while the dry weight of the whole composition is at least 40 g / 100 ml. 2. A composition according to claim 1, wherein the concentration of free amino acids is between 7.5 and 30 g / 100 ml. The composition of claim 2, wherein the concentration of free amino acids is between 10 and 25 g / 100 ml. The composition according to any one of paragraphs. 1-3, in which the content of digestible carbohydrates is between 10 and 20 g per 100 ml. 5. The composition according to claim 4, in which the content of digestible carbohydrates is between 15 and 25 g per 100 ml. The composition according to any one of paragraphs. 1-3, in which free amino acids include at least tyrosine in a concentration of between 1-3 g / 100 ml. The composition according to any one of paragraphs. 1-3, which further comprises one or more non-digestible carbohydrates. 8. A composition according to claim 7, which contains pectin and at least one non-digestible carbohydrate selected from the group consisting of chitosan and guar gum as an non-digestible carbohydrate. The composition according to any one of paragraphs. 1-3, in which the liquid or gelled composition contains fruit juice or fruit puree. 10. The composition according to any one of paragraphs. 1-3, which additionally contains fat in a concentration between 0.3 and 15 g / 100 ml. 11. The composition according to any one of paragraphs. 1-3, in which the dry weight of the entire composition is less than 60 g / 100 ml. 12. Use of a composition according to any one of the preceding claims as a medicine. The use of claim 12, wherein the composition is used in the treatment of a person suffering from a disease selected from the group consisting of phenylketonuria, homocystinuria, maple syrup disease, tyrosine1. Жидкая или желированная пасте
