Symptoms of Lactose Intolerance

Lactose intolerance is a digestive problem caused by lactose malabsorption. A person that is lactose intolerant is unable to produce lactase in their small intestine, an enzyme that breaks down lactose.

Lactose is present in dairy products and food items made with milk derivatives such as ice-cream. If a person with lactose intolerance consumes these types of foods, they will usually develop symptoms within a few hours of consumption.

Here are some symptoms of lactose intolerance:


When you don’t produce enough lactase in your small intestine, you can’t digest the lactose in the food in your large intestine. Bacterias in your colon will ferment the lactase and create gas. These extra gasses will cause discomfort such as bloating and flatulence.

Abdominal cramps

You can also get abdominal cramps even it’s a digestive problem. It can happen as soon as you consume food with lactose. Unlike menstrual cramps, abdominal cramps from lactose intolerance are sharp.


A person with lactose intolerance has an impaired digestive system. It can’t digest food well and will cause diarrhoea, which also leads to severe dehydration. You might also want to deal with this symptom before it turns into a chronic illness. Warning signs of diarrhoea caused by lactose intolerance include abdominal cramps.


Nausea isn’t a common lactose intolerance symptom, but it can happen. Vomiting is also a symptom that accompanies nausea. Drink plenty of water and rest well if you feel nauseated.


Depending on the severity of your lactose intolerance, you probably don’t have to give up dairy foods entirely. Your body might still be able to consume food with lactose if your intolerance is low. However, it is important to make proper decisions based on your health.

For more information about lactose intolerance and milk allergy in kids, visit