A straw (4) for flexible packages for enteral nutrition, suitable for being coupled to a needle (100), comprises a main wall (18b) which extends along a main axis (X) defining an inner duct (18a), terminating in a mouth (34) and a connection template (50) positioned in the inner duct (18a) so as to partially obstruct it, having a cross-shaped opening (56) for the insertion with a shaped coupling of a stem (110) of the needle (100).
