Lactose Intolerance and Breast Milk Composition

Maternal Lactose Intolerance vs. Milk Production

• A mother's ability to produce lactose in breast milk is not affected by her own lactose intolerance status, as the mammary glands synthesize lactose independently of the digestive system 1, 2
• Maternal factors that do influence milk composition include diet, age, and parity, but lactose intolerance is not among these factors 3

Clinical Implications

• For breastfeeding mothers with lactose intolerance, there is no need to modify their diet or feeding practices based on their own lactose intolerance 1, 2
• Human milk remains the optimal nutrition for infants regardless of maternal lactose intolerance status, as its composition is tailored to infant needs and contains numerous bioactive components that support neurological development and immune function 1, 4