Lactose intolerance is usually the result of your body not producing enough lactase.
Open all pages about Lactose intolerance
Symptoms of lactose intolerance may include farting, stomach cramps or diarrhoea a few hours after having food or drink containing lactose.
Lactose intolerance is caused by your body not producing enough lactase, a substance that helps you digest lactose.
Lactose intolerance is where you cannot properly digest lactose, a type of sugar found in milk and dairy products.
Page last reviewed: 25/02/2019
Next review due: 25/02/2022