Feeding bottle (10) comprising a neck to which a teat (14) is attached, characterized in that it comprises at least two visual marks (20, 22) located on one and the same circumference near the neck or near the teat and separated from one another about the axis of the feeding bottle, one of these marks (20) defining an angular position of the feeding bottle (10) about its axis for which the other mark (22) indicates a point through which the free surface (24) of the liquid contained in the feeding bottle needs to pass in order for the hydrostatic pressure of the liquid at an outlet orifice (16) of the teat (14) to be substantially zero.