Symptoms of Lactose intolerance

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The symptoms of lactose intolerance vary widely, but generally include:

Wind (flatulence)
Nausea
Stomach cramps
Bloated stomach
Diarrhoea

How much lactose you can take into your body before getting these symptoms will depend on how much lactase your body produces. If your body only produces a small amount of lactase, it will soon become overwhelmed if you eat too much food containing lactose and the symptoms will appear.

Symptoms usually begin between half an hour to two hours after eating or drinking foods containing lactose.