Lactose intolerance in breastfed infants
The World Health Organization reports that secondary lactose intolerance is rare when an infant is exclusively breastfed, despite receiving equivalent amounts of lactose in bottlefeeding. The reasons for this are unclear but could be related to slower gastric clearance in breastfed infants.12
Where lactose intolerance does occur in breastfed infants it is suggested that it is a result of incorrect feeding technique. If the infant has insufficient feeds and fails to extract the fattier hind milk, the resultant lower-fat milk increases gastric clearance and leads to lactose overload in the small intestine. The mother should be assessed by a midwife or health visitor on correct positioning and attachment of the child to ensure the fat rich hind milk is consumed. In some cases a lactose free maternal diet may also be recommended.
Symptoms of lactose intolerance
- Primary lactose intolerance develops slowly (if at all) following weaning.
- Secondary lactose intolerance often presents following illness such as gastroenteritis.
The most common symptoms include:
- Abdominal cramps
- Colic
- Bloating/distension
- Diarrhoea
- Wind