Microdosing & Breastfeeding: What Mothers Are Asking Many pregnant and postpartum mothers ask an important and tender question: Can microdosing psilocybin while breastfeeding harm my child? Concerns often center on safety and development: • Could psilocybin pass into breast milk? • Might a baby experience effects directly or indirectly? • Could this impact a child’s growth or nervous system development? These questions reflect care, responsibility, and deep maternal instinct—and they deserve thoughtful, honest answers. What We Currently Know—and What We Don’t To date, there are no formal clinical studies examining psilocybin and breast milk. As psychedelic research continues to re-emerge within medical and academic institutions, it is hopeful that future studies will explore this topic more thoroughly. However, at present, microdosing during breastfeeding remains largely uncharted territory in the scientific literature. Because of this lack of data, Mothers of the Mycelium does not recommend microdosing during pregnancy or breastfeeding as a general practice. Why Mothers Still Ask Despite limited research, some mothers explore questions around microdosing during the breastfeeding period for reasons such as: • Postpartum mental health support • Emotional regulation and nervous system balance • Stress, overwhelm, or mood challenges • Desire for increased presence and connection These motivations are deeply human—and highlight gaps in maternal mental health care that deserve attention and research. Observations from the Mothers of the Mycelium Community Within Mothers of the Mycelium, we have conducted internal, community-based qualitative and quantitative evaluations as part of our cohort programs. These are not clinical trials, but structured observations rooted in lived experience, journaling, surveys, and facilitated integration. From these internal evaluations, some breastfeeding mothers have reported: • Subjective increases in milk supply • Improved stress regulation, which may indirectly support lactation • No observable effects in their infants Some mothers also shared observations suggesting that the body’s natural metabolic and filtration processes may limit exposure to the nursing child when microdosing at very low levels. It is essential to be clear: These findings are observational and anecdotal, not medical proof. They do not replace scientific research, nor do they establish safety guarantees. A Grounded, Mother-Centered Stance Because breastfeeding involves another developing nervous system, Mothers of the Mycelium approaches this topic with extra caution. We emphasize: • There is no definitive scientific evidence confirming safety during breastfeeding • Individual bodies, metabolisms, and babies vary widely • What one mother experiences may not translate to another • Choosing not to microdose during breastfeeding is a valid and protective choice Any mother considering microdosing while breastfeeding should do so only after consulting a qualified healthcare provider, and with full awareness of the unknowns. Why We Share This Information We believe mothers deserve honest information—not silence or shame. This overview exists to: • Acknowledge the questions mothers are already asking • Distinguish between lived experience and scientific certainty • Encourage informed, sovereign decision-making • Advocate for future research that centers maternal realities Why We Share This Information We believe mothers deserve honest information—not silence or shame. This overview exists to: • Acknowledge the questions mothers are already asking • Distinguish between lived experience and scientific certainty • Encourage informed, sovereign decision-making • Advocate for future research that centers maternal realities Educational Disclaimer Mothers of the Mycelium provides educational information only. We do not offer medical advice or recommendations regarding pregnancy or breastfeeding. Always consult qualified healthcare professionals when making decisions that affect maternal or infant health.

For some mothers, questions about microdosing arise during the postpartum or breastfeeding period primarily around mental and emotional well-being. After pregnancy and birth, many women experience heightened sensitivity, emotional fluctuations, anxiety, or depressive symptoms and intuitively understand that caring for their mental health is an essential part of caring for their child. Some mothers ask themselves difficult and honest questions, such as: • How does my emotional state affect my baby? • What impact might chronic stress, anxiety, or depression have through my presence, my nervous system, or my milk? These questions often come from a place of deep responsibility, not recklessness. They also highlight the significant gaps in postpartum mental health support available to mothers worldwide. At Mothers of the Mycelium, we recognize these motivations while also emphasizing that wanting support does not obligate a mother to take risks, especially when scientific evidence is limited. Ancestral Perspectives: Context Matters Information about the use of psilocybin-containing mushrooms during pregnancy or breastfeeding is limited, despite the fact that ceremonial mushroom use dates back thousands of years. Some contemporary healers and practitioners working within ancestral or spiritual frameworks speak about psilocybin as a meaningful medicine during major life transitions, including motherhood. Additionally, other plant medicines such as ayahuasca or peyote have been used ceremonially by certain Indigenous cultures during pregnancy or breastfeeding, within highly specific cultural, spiritual, and communal contexts. In these traditions, use is guided by elders, ritual structure, lineage knowledge, and collective responsibility. These practices are not casual, recreational, or isolated they are embedded within a worldview that includes spiritual cosmology, community containment, and lifelong preparation. Some cultural narratives describe these medicines as supporting alignment between mother and child, and as part of broader ceremonial life. Anthropologists and researchers have noted that such practices have persisted over long periods of time within those cultures. Why Cultural Context Is Essential It is critical to state clearly: The existence of traditional or ceremonial practices in Indigenous cultures does not automatically translate into safety or appropriateness in modern, non-traditional settings. Differences include: • Dosage and preparation • Environmental containment • Spiritual and communal support • Nutritional and lifestyle factors • Access to elders and healers trained from birth Because of these differences, Mothers of the Mycelium does not recommend applying Indigenous ceremonial practices outside of their cultural context, nor do we position them as evidence of safety for modern mothers. Our Mother-Centered Position We honor ancestral wisdom without extracting it. We honor mothers’ questions without encouraging risk. At Mothers of the Mycelium, our stance is grounded in care: • There is no clinical research confirming the safety of microdosing during pregnancy or breastfeeding • Breastfeeding involves another developing nervous system • Choosing to wait, pause, or choose other forms of support is wise and protective We advocate for: • Expanded maternal mental health care • More research that includes mothers • Honest conversations without shame or pressure A Closing Reflection The question is not whether mothers want support they do. The question is whether our systems are adequately supporting them. Until science catches up with maternal reality, caution remains an act of love. Your care for yourself matters. Your care for your child matters. And you deserve support that does not require you to navigate unknowns alone.