The American Academy of Pediatrics and World Health Organization recommend that infants are exclusively breastfed for at least six months. Mothers are encouraged to breastfeed given nutritional value in breast milk, immunity advantages for the infant, and bonding between mother and child. However, a national study on feeding practices found that about 50% of mothers reported insufficient milk supply as the reason for discontinuation of breastfeeding. There has been an increase in supplements marketed to mothers to enhance breast milk production. This is the first case of Mother's Milk Tea, a popular tea advertised to increase milk supply, reported to cause elevated liver enzymes. A 40 year old Lithuanian female with no past medical history presented 5 months postpartum for evaluation of elevated liver enzymes. Her pregnancy was complicated with gestational diabetes, managed with Levemir, which resolved following delivery. Following the birth of a healthy male infant she discontinued the Levemir and remained on prenatal vitamins. Labs at the time of delivery were normal. After delivery, she reported poor breast milk supply and started Mother's Milk Tea (by Traditional Medicinals). Three months postpartum, labs revealed AST 47 IU/L, ALT 95 IU/L and alkaline phosphatase 90 IU/L. Upon presentation she had no gastrointestinal complaints and reported an increase in her breast milk supply. She had no evidence of chronic viral hepatitis B or C, hemochromatosis, Wilson's disease, autoimmune hepatitis (normal ANA, anti-actin). An ultrasound revealed a normal liver. Following discontinuation of the Mother's Milk tea, her liver enzymes normalized (AST 21 IU/L, ALT 40 IU/L, alkaline phosphatase 104 IU/L) and she was advised to abstain from taking it again. Mother's Milk Tea, a popular European tea sold worldwide, is commonly marketed to new mothers to increase breast milk supply. It is composed of fennel, anise, coriander, fenugreek and blessed thistle. Fenugreek is the most widely used herbal galactogogues with limited data regarding efficacy and safety. Reported side effects include diarrhea, flatulence, allergic reactions and hypokalemia. To our knowledge, this is the first reported case of abnormal liver enzymes occurring from Mother's Milk Tea. Awareness of this potential side effect is important and caution should be exercised prior to recommending herbal supplements for enhancement of breast milk production.