LACTOSE INTOLERANCE: THE SIGNS
Lactose intolerance occurs when there is insufficient lactase enzyme in the small intestines to digest lactose (the sugar found in dairy products as well as breastmilk), resulting in symptoms such as abdominal pain, bloating, cramps, flatulence, diarrhoea and nausea.
In babies with lactose intolerance, symptoms include irritability, coming on and off the breast and failure to gain weight.
The degree of deficiency and intolerance may vary from one individual to another. Most people can tolerate at least a small amount of lactose even if they are lactose intolerant. Cheese (especially mature or ripened cheeses) and yoghurt are usually easier to tolerate than milk.