Physical examination. Your doctor may require a physical examination based on the symptoms you are experiencing. They are likely to ask you to skip having any dairy products to observe whether that helps in improving your condition.
Lactose tolerance test. Your doctor may advise you to take this test, which evaluates the ability of your digestive system to absorb lactose. You have to fast for about 8 hours before taking the test. This means that you have to stay away from both food and water. During the test, you will be asked to drink lactose. A few samples of blood will be taken over a span of 2 hours to check your level of blood sugar. If your blood sugar does not increase, it means that you are lactose intolerant.
Hydrogen breath test. This test also requires you to drink lactose. Your breath will then be checked many times for analyzing the hydrogen level in your mouth. High levels of hydrogen may indicate that you are lactose intolerant.
Stool acidity test. This test is used for infants and young children. This test, appropriate only for children, measures the level of acid in the stool. The presence of fatty acids like lactic acid, glucose, etc. in stool indicates lactose intolerance.
Treatment for Lactose Intolerance
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