Evidence supporting the use of: Oxytocin
For the body system: Breasts

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Synopsis

Source of validity: Scientific
Rating (out of 5): 5

Oxytocin is scientifically validated as a key hormone in supporting the breast body system, particularly in the context of lactation. Oxytocin is produced in the hypothalamus and released by the posterior pituitary gland. Its primary role in the breast is to stimulate the contraction of myoepithelial cells surrounding the mammary alveoli, which facilitates the ejection of milk from the alveoli into the ducts—a process known as the "milk let-down reflex." This mechanism is essential for breastfeeding, allowing infants to obtain milk efficiently during suckling. Numerous clinical studies and physiological investigations have confirmed oxytocin's role in this process; it is so well established that synthetic oxytocin (e.g., Pitocin) is sometimes administered to support lactation and resolve issues of insufficient milk let-down. Additionally, oxytocin is involved in the emotional bonding between mother and infant, further supporting its critical role in postpartum and breastfeeding physiology. Overall, the use of oxytocin to support breast function, specifically in relation to milk ejection during lactation, is grounded in robust scientific evidence and is a cornerstone of modern obstetric and lactation medicine.

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