Does Red Adzuki Bean Boost Breast Milk Production?

Red adzuki beans—often referred to as “chi xiao dou” in traditional Chinese medicine (TCM)—are a common ingredient in East Asian culinary and herbal practices. While they are nutritionally rich in plant-based protein, dietary fiber, iron, and B vitamins, there is no robust scientific evidence supporting their use as a galactagogue—that is, a substance that promotes or increases breast milk production.

In TCM theory, red adzuki beans are classified as having a cooling nature and are traditionally used to promote diuresis, reduce edema, and support spleen and kidney function. Some practitioners historically recommend them as part of dietary regimens for postpartum women, often in combination with other herbs like astragalus or fenugreek, based on pattern differentiation rather than lactation-specific mechanisms. However, these recommendations stem from empirical tradition rather than clinical trial data.

Modern lactation science emphasizes evidence-based interventions for low milk supply, including frequent and effective infant suckling, proper latch technique, maternal hydration and nutrition, stress reduction, and, when indicated, pharmacologic support such as domperidone (where approved) or galactogogues with documented efficacy—like metoclopramide or herbal preparations such as fenugreek or blessed thistle, albeit with variable evidence quality.

While red adzuki beans pose no known risk to lactating individuals when consumed in typical food amounts, they should not be relied upon as a primary strategy to address insufficient milk production. Women experiencing concerns about milk supply are advised to consult an International Board Certified Lactation Consultant (IBCLC) or healthcare provider for personalized assessment and evidence-informed management.