Holder for use in disposable feeding systems

A holder (12) for use in disposable feeding systems includes a body which is made from two straight pieces or sections (14,16) capable of being arranged in an abutting, end-to-end relationship in which they assume a non-coaxial arrangement that results in an angular body shape designed, for instance, to promote infant feeding in a semi-upright position. From this feeding position, the body sections of a transformable embodiment can be moved to a filling position, in which they are arranged coaxially to form a straight body shape that facilitates the insertion and/or filling of a disposable liner (18), preferably via movement of a friction fit mechanism. The body sections of both the transformable and non-transformable embodiments may also be provided with finger guides, which promote the proper gripping of the holder by a user, and finger holes (48,50,52,54), which facilitate the expulsion of air from a liquid-filled liner receivable in an interior of the holder.