Nutritional administration system using single-use capsules comprising: - a dispenser for a nutritional composition comprising a means for providing water in a single-use capsule containing a controlled portion service of a nutritional formula, - different types of capsules that are designed according to a nutritional feeding plan that corresponds to people or categories of people to be fed, each type comprising capsules containing a nutritional formula； the capsules of different types having at least one differentiation characteristic, so that each type of capsules corresponds to a period of feeding time determined by the feeding plan, - control operation means associated with each type of capsules, comprising said information means in relation to at least one operational parameter of differentiation relevant to produce and administer a differentiated nutritional liquid in the dispenser according to the nutritional feeding plan, wherein the at least one differentiation characteristic of each type of capsules and the at least one operational parameter of differentiation differs according to the age of the person to be fed and, where the amount of nutritional formula contained in the capsule differs for each type of capsule and, where the nutritional formula differs for each type of capsule according to at least: - the source of protein and / or e l protein content, - the source of carbohydrates and / or the carbohydrate content and - the source of lipids and / or lipid content, where the capsule size also differs for at least two different types of Capsules and control operation means increase the volume of water to reconstitute the nutritional liquid depending on the size of the capsule.Sistema de administración nutricional que usa cápsulas de un solo uso que comprende: - un dispensador para una composición nutricional que comprende un medio para proporcionar agua en una cápsula de un solo uso que contiene un servicio de porción controlada de una fórmula nutriciona
