A feeding bottle (10) comprises a container (16), a teat (12) and a collar (14) to screw the teat (12) onto and seal the container (16). A vent assembly (18) is mounted between the teat (12) and the container (16) and includes a vent tube (22) passing down to a position close to the base of the container (16) and having a one way valve (34) allowing air to pass into the container (16) on application of suction to the teat (12) but preventing liquid flowing into the vent tube (22), together with a valve flange (36) acting as an anti-choke member.
