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Does serotonin affect breastfeeding?

The Role of Serotonin in Breastfeeding
Serotonin, a neurotransmitter primarily known for its role in mood regulation, has emerged as a significant player in lactation physiology. Recent studies indicate that serotonin is not only produced in the brain but also synthesized in human mammary glands, where it plays a crucial role in controlling milk production and secretion. This discovery has opened new avenues for understanding how maternal physiology interacts with breastfeeding.
Serotonin’s Impact on Milk Production
Research has shown that serotonin can inhibit milk synthesis and secretion in the mammary glands. This means that elevated levels of serotonin might lead to reduced milk supply, which is particularly concerning for nursing mothers. A study highlighted that serotonin is responsible for regulating milk volume homeostasis, suggesting that its levels must be carefully balanced to ensure adequate milk production during lactation.
Antidepressants and Breastfeeding
The relationship between serotonin and breastfeeding is further complicated by the use of selective serotonin reuptake inhibitors (SSRIs), commonly prescribed antidepressants. While some studies have indicated that SSRIs like paroxetine and sertraline are preferred for nursing mothers due to their relatively safe profiles, there are concerns about their potential impact on breastfeeding. For instance, women taking these medications have been observed to have lower rates of breastfeeding initiation and may experience delayed secretory activation, which can affect overall milk supply.
However, recent research challenges the notion that SSRIs significantly impair breastfeeding. A study published in the British Journal of Clinical Pharmacology found no substantial link between the use of SSRIs during late pregnancy and an increased risk of low milk supply. This suggests that while serotonin does play a role in lactation, the effects of SSRIs may not be as detrimental as previously thought.
Future Directions in Research
The understanding of serotonin’s role in lactation is still evolving. Future research aims to delve deeper into how serotonin communicates with the mammary glands and influences milk production. This could lead to new therapeutic strategies for mothers struggling with breastfeeding, especially those who are also managing mental health conditions.
Conclusion
In summary, serotonin significantly affects breastfeeding by regulating milk production and secretion. While its role is complex, particularly in the context of antidepressant use, ongoing research is crucial for developing a clearer understanding of how to support nursing mothers effectively. Balancing serotonin levels may be key to optimizing breastfeeding outcomes, ensuring that both maternal mental health and infant nutrition are adequately addressed.

Does serotonin pass through breast milk?

Serotonin (5-hydroxytryptamine; 5-HT), a milk constituent, is synthesized by mammary epithelial cells when milk is secreted during lactation [7,8]. Previous studies suggest that the 5-HT in milk is involved in the regulation of milk production in an autocrine/paracrine manner [7], [8], [9], [10], [11].

What hormones are suppressed during breastfeeding?

As milk production slows and eventually stops, prolactin and oxytocin levels decrease. While breastfeeding, these hormones promoted feelings of contentment, peace, and intimacy. As these hormone levels drop, some individuals experience complex physical and emotional symptoms including moodiness, sadness, or insomnia.

Can emotions affect baby through breast milk?

Cortisol can be passed to the baby through the breast milk. Past studies have shown that cortisol was found in the human milk of breastfeeding mothers experiencing higher levels of stress, and led to more crying and fussiness in their breastfed babies.

Are hormones out of whack while breastfeeding?

Estrogen: All women have low levels of estrogen for the first couple of months after giving birth. Continued breastfeeding extends this period for at least six months. For a few women, lower levels may last as long as they are nursing. Lower estrogen levels may cause vaginal dryness, tightness and tenderness.

Does breastfeeding produce serotonin?

Serotonin (5-hydroxytryptamine; 5-HT), a milk constituent, is synthesized by mammary epithelial cells when milk is secreted during lactation [7,8]. Previous studies suggest that the 5-HT in milk is involved in the regulation of milk production in an autocrine/paracrine manner [7], [8], [9], [10], [11].

Should you avoid breastfeeding if you are on antidepressants?

Antidepressants while breastfeeding
It may be safe to take antidepressant medications while breastfeeding. Although many medications pass into breast milk, most have little or no effect on milk supply or infant well-being.

What two hormones relax the mother during breastfeeding?

Prolactin is sometimes called “the love hormone.” In animals, it is responsible for mothering behaviors. Oxytocin is responsible for the relaxed, sometimes sleepy, calm feelings that accompany milk letdown. Together, these two hormones keep mothers relaxed, calm, and ready to care for their babies (Uvnas-Moberg, 2003).

What are the first signs of serotonin syndrome?

But too much serotonin causes signs and symptoms that can range from mild (shivering and diarrhea) to severe (muscle rigidity, fever and seizures).

What is the safest natural antidepressant?

Natural remedies for depression: Are they effective?

  • St. John’s wort.
  • SAMe. This dietary supplement is a synthetic form of a chemical that occurs naturally in the body.
  • Omega-3 fatty acids. These fats are found in cold-water fish, flaxseed, flax oil, walnuts and some other foods.
  • Saffron.
  • 5-HTP.
  • DHEA.

What is serotonin syndrome in nursing?

Serotonin syndrome is a potentially life-threatening condition caused by excessive serotonergic activity in the nervous system. It is characterized by mental status changes, autonomic instability, and neuromuscular hyperactivity.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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