Goat's rue (Galega officinalis) is a plant used in traditional medicine as a galactogogue (Wilinska & Schleußner, 2015). Although its use has a long history, few studies have investigated its efficacy and safety. Goat's rue is generally well tolerated but may cause hypoglycaemia in some and should not be used by women taking antidiabetic drugs (National Library of Medicine (US), 2006). It is assumed that phytoestrogenic substances in these teas or herbal extracts that mediate the galactogenic effect of goat's rue (González‐Andrés et al., 2004).