There is no reliable scientific evidence that placenta encapsulation prevents or treats postpartum depression. The only randomized, double-blind, placebo-controlled trial on this topic found no significant differences in mood between women who took placenta capsules and those who took a placebo. Despite widespread anecdotal claims, major medical organizations advise against the practice, citing both a lack of proven benefit and real safety concerns.
What the Clinical Evidence Shows
A pilot study published in Women and Birth is the closest thing to a gold-standard test of placenta encapsulation for mood. Researchers randomized 27 women into two groups: 12 took capsules made from their own processed placenta, and 15 took identically prepared placebo capsules. Neither the women nor the researchers knew who got what. The result: no robust differences in postpartum mood, mother-infant bonding, or fatigue between the two groups.
The researchers did note a small, non-significant trend toward fewer depressive symptoms in the placenta group and slightly lower fatigue scores by the end of the study. But with only 27 participants, these trends fall well within the range of statistical noise. The authors themselves described the findings as preliminary and not something to draw conclusions from.
This matters because it’s the only placebo-controlled trial available. Every other claim about placenta encapsulation improving mood comes from self-reported surveys or personal testimonials, not from studies designed to separate real effects from expectation.
Why So Many Women Report Feeling Better
If the clinical data doesn’t support it, why do so many women swear by placenta capsules? Researchers who reviewed the evidence point to the placebo effect as the most likely explanation. When you believe something will help your mood, that belief alone can produce measurable improvements in how you feel. This is a well-documented phenomenon across medicine, and it’s especially powerful for subjective experiences like energy and emotional well-being.
The early postpartum period also involves rapid natural recovery. Hormone levels stabilize, sleep patterns slowly improve, and social support often increases in the first weeks after birth. Women who start taking placenta capsules during this window may attribute their natural improvement to the capsules rather than to their body’s own adjustment. Without a placebo comparison, there’s no way to tell the difference.
Researchers have noted that the placebo effect does have real therapeutic value in some contexts. Feeling better, even if it’s driven by expectation, still counts as feeling better. But that’s different from saying the placenta itself contains something that treats depression, and it doesn’t justify the safety trade-offs involved.
The Processing Problem
One of the core claims behind placenta encapsulation is that the placenta retains beneficial hormones and nutrients that can replenish a new mother’s body. But research shows the encapsulation process itself undermines this idea. The placenta is typically steamed, dehydrated at high temperatures, and ground into powder before being packed into capsules. These steps destroy many heat-sensitive compounds, including the hormones and bioactive molecules that proponents claim are responsible for the benefits.
As for iron, placenta capsules do contain more iron than a beef-based placebo. But the amount is modest. At the maximum daily intake used in the clinical trial, encapsulated placenta provided only about 24% of the recommended daily allowance for iron in lactating women. That’s not enough to treat postpartum iron deficiency, and researchers have specifically concluded that placenta capsules are not an adequate treatment for postpartum anemia. A standard iron supplement delivers far more per dose.
Safety Risks That Are Well Documented
The CDC published a case report in 2017 involving an infant in Oregon who developed a serious bloodstream infection with Group B Streptococcus (GBS) twice. Genetic testing confirmed the bacterial strain in the baby’s blood was indistinguishable from the strain found in the mother’s placenta capsules. The mother had been taking the capsules as directed, and the ongoing ingestion likely increased her GBS colonization, which then passed to her newborn through close contact or breastfeeding.
The CDC’s conclusion was direct: “The placenta encapsulation process does not per se eradicate infectious pathogens; thus, placenta capsule ingestion should be avoided.” They recommended that clinicians ask about placenta ingestion in cases of late-onset GBS infection and educate mothers about the risks.
Beyond bacteria, placenta tissue accumulates environmental contaminants. The placenta functions as a filter during pregnancy, collecting and storing heavy metals like cadmium, mercury, and lead to protect the developing fetus. Studies have found detectable concentrations of these metals in placental tissue. When you consume that tissue, you’re ingesting what the organ was designed to keep away from your baby. Processed placenta samples have also tested positive for Salmonella, Staphylococcus, and E. coli, particularly in preparations that weren’t adequately dehydrated.
What Medical Organizations Say
No major medical organization endorses placenta encapsulation. The Society of Obstetricians and Gynecologists of Canada has explicitly recommended against the practice, stating that existing studies lack the methodological rigor needed to support any health claims. While the American College of Obstetricians and Gynecologists has not issued a standalone position paper, the broader obstetric community treats the practice as unsupported and potentially harmful.
Placenta capsules are also unregulated. They’re not classified as food or medicine by any regulatory body, which means there are no standardized safety requirements for how they’re prepared, stored, or tested for contamination. The person encapsulating your placenta may follow careful protocols or may not, and there’s no oversight either way.
Effective Options for Postpartum Depression
Postpartum depression affects roughly 1 in 7 new mothers and is a treatable condition. If you’re experiencing persistent sadness, loss of interest, difficulty bonding with your baby, or thoughts of self-harm, proven treatments exist. Cognitive behavioral therapy and interpersonal therapy have strong evidence for postpartum depression specifically. Certain medications are also well studied and considered compatible with breastfeeding when prescribed by a provider familiar with postpartum care.
Peer support groups, structured exercise, and adequate sleep (when possible, with help from a partner or family) also contribute to recovery. These approaches have something placenta encapsulation lacks: a body of evidence showing they work better than doing nothing. Choosing an unproven remedy over an effective one can delay real treatment during a period when early intervention makes a significant difference.