Are you feeling nauseous after drinking milk? The milk might be bad, or you might have lactose intolerance.


Lactose intolerance occurs when the small intestine does not produce enough lactase enzymes to digest lactose. Since the body can't digest the sugar, it often produces unpleasant symptoms when it consumes dairy products.

This condition occurs when the small intestine does not have enough of a digestive enzyme known as lactase. This causes the body to digest the lactose in food. People with this condition usually experience severe symptoms such as vomiting and bloody stool.

Individuals with lactase enzyme deficiency can experience a failure to digest lactose. This condition usually occurs when the enzyme's levels are lower.

Although it is rare in children under five, lactose intolerance is prevalent in young adults. The global prevalence of this condition is about 65% worldwide, with the most common cases appearing in African-American, Hispanic/Latino, and Asian ethnicities.

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Reasons for lactase deficiency
The primary cause of lactase deficiency usually appears during the development of lactase. As people age, lactase development gradually declines. Symptoms of primary lactase deficiency can appear in adolescence or early adulthood.

The secondary cause for lactase deficiency might come from diseases. Various diseases can also contribute to the development of lactase deficiency. Some of these include diabetes, irritable bowel syndrome, and colitis.

The last type of lactase deficiency is the developmental one. This condition appears in infants who are prematurely born. The underdeveloped intestine causes their lack of lactase activity to improve as they get older, thus impairing their ability to digest lactose.

People with lactase deficiency may experience various symptoms, such as abdominal pain, nausea, and vomiting. These symptoms usually start around 30 minutes to 2 hours after consuming food or drinks that contain lactose.

How severe your symptoms depend on how much lactase you have eaten and the amount of lactase in your body.

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Ways to diagnose lactose intolerance
There are many ways to diagnose lactose intolerance, but the best way is to leave it to your professional medical provider. If you have the symptoms, get checked.

A simple and effective way to diagnose lactose intolerance is through a test. This procedure involves not eating or drinking anything for 8 hours before the test. Then you will consume a drink containing lactose. The test will then measure your blood sugar levels and provide a report of your condition.

A hydrogen breath test is another type of test that can diagnose lactose intolerance. It measures the concentration of hydrogen in your breath after you consume a lot of lactose.

A stool acidity test measures the amount of acid in a person's stool. This test is often intended for children and infants. If they are not digesting lactose, their stool can have various kinds of fatty acids such as lactic acid and glucose.

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