A feeding teat (40) constructed and arranged to be used on a bottle (52) that holds and dispenses a liquid to be fed to an infant or child. The teat (40) has a nipple portion (70) with an orifice (71) at a terminal end, and defines an interior profile shaped by intersecting reverse curves (75, 76) that generally decrease the interior diameter of the nipple portion (70) toward the orifice (71), so as to channel fluid flow into the orifice (112). There is a flange portion (66) constructed and arranged to be releasably coupled to the bottle (52) such that the liquid can flow from the bottle (52) into the teat (40), and a convexly shaped intermediate portion (80) integrally connecting the nipple portion (70) to the flange portion (66). A pressure relief valve (60) built into the teat (40) is constructed and arranged to admit air into the interior of at least one of the teat (40) and the bottle (52).
