"On a population basis, exclusive breastfeeding for the first six months of life is the recommended way of feeding infants, followed by continued breastfeeding with appropriate complementary foods for up to two years or beyond." Ο παγκόσμιος οργανισμός υγείας προτείνει θηλασμό μέχρι τα δύο χρόνια (και πάνω), αλλά κάτι θα ξέρεις παραπάνω.http://www.who.int/maternal_child_adolescent/topics/child/nutrition/breastfeeding/en/