Capsule (1) single dose for bottle (2), where the bottle (2) is formed by a containment container with an open upper end and an adjustable teat therein, characterized in that it comprises: - a hollow body (3) cylindrical in shape, made by injection and, formed by respective lower and upper ends (3.1, 3.2) opposite and circular, a lateral surface (4) between them and an interior cavity apt to contain a dose of infant food (5); - a plunger (6) comprising means for adjusting the internal contour of the body (3), and having a downward movement activated by pressure, from an initial containment position in which it is located at the upper end (3.2) of the body (3), up to a final discharge position of the capsule (1), in which it is disposed at the lower end (3.1) thereof, - means for closing the lower end (3.1) of the body (3), formed by a circular sheet (8) attached to the circular contour thereof and having an opening means along an opening arc (9) of said circular contour, and; - means for coupling to the upper end of the baby bottle (2), able to allow coupling to baby bottles (2) of different diameters. (Machine-translation by Google Translate, not legally binding)1. Cápsula (1) monodosis para biberón (2), donde el biberón (2) está formado por un recipiente de contención con un extremo superior abierto y una tetina ajustable en el mismo, caracterizada porque comprende:- un cuerpo (3) hueco de forma cilíndrica, realizado por inyección y, formado por sendos extremos inferior y superior (3.1, 3.2) opuestos y circulares, una superficie lateral (4) entre ambos y una cavidad interior apta para contener una dosis de alimento (5) infantil; - un émbolo (6) que comprende unos medios de ajuste al contorno interior del cuerpo (3), y que presenta un movimiento descendente activado por presión, desde una posición inicial de contención en la que está situado en el extremo superior (3.2) del cuerpo (3), hasta una posición final de descarga de la cápsula (1), en la que está dispuesto