The present invention relates to a nipple (1) comprising at least three integral parts, a nipple (2) comprising at its end at least one perforation (8) for the passage of a liquid, an areola (4), an isthmus (3). ) joining the nipple (2) to the areola (4), and optionally a skirt (5), wherein the nipple (2) comprises an upper part or part palatal and a lower part or lingual part which are asymmetrical and the isthmus 3 joins the nipple and the areola, this junction being narrowed for a good placement of the upper and lower jaws, the isthmus further comprising means for ensuring the flow of milk under the muscular action of the child on the pacifier; the present invention also relates to a feeding bottle comprising a teat (1) according to the invention, a reservoir and a retaining ring of the teat (1) on the reservoir; the invention also relates to a breastfeeding system comprising such a bottle and a reservoir holder.
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