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Lactose Intolerance

Gastroenterology Condition

Lactose Intolerance

The term lactose intolerance simply means the inability to digest lactose. Lactose is a sugar most often found in dairy products. Patients who are lactose intolerant have trouble digesting lactose because they have insufficient amounts lactase in their bodies. Lactase is the enzyme that breaks down lactose so the body can use it.

What is lactose intolerance?

Anyone lacking sufficient lactase in their body can develop symptoms after ingesting dairy products.

While lactose intolerance is more prevalent in certain ethnic groups, anyone lacking sufficient lactase in their body can develop symptoms after ingesting dairy products. There are three different levels of lactose intolerance.

Primary

Adult who may have tolerated dairy well during their youth, but for whom lactase production diminishes significantly upon reaching adulthood.

Secondary

Your small intestine is affected by a surgery, illness or injury and reduces lactase production. This may be due to Crohn’s disease, celiac disease, or infection. Treatment may help lactase production return to normal over time, depending on the original cause.

Congenital/Developmental

Babies can be born with a lactase deficiency based on inherited genes from both parents or premature birth. Children born of African, Asian, Hispanic and Native American descent are more prone, but it is still a rare issue for young children. Most people develop lactose intolerance in adulthood.

Symptoms of Lactose Intolerance

Lactose intolerant patients may experience symptoms after consuming milk or other dairy products. Symptom severity and duration varies and is dependent upon the amount of lactose ingested as well as the amount of lactose the individual’s body can handle.

Symptoms of lactose intolerance may include:

  • Painful gas
  • Bloating
  • Diarrhea
  • Abdominal pain and cramping
  • Nausea

Foods to avoid

A few common foods that should be limited or avoided by those suffering from lactose intolerance include:

  • Milk
  • Ice Cream
  • Cheese
  • Sour Cream
  • Curds
  • Butter

Diagnosis of Lactose Intolerance

The diagnosis of lactose intolerance can be made based on symptom reporting and the response to elimination of dairy products from the diet. However, testing is available to make a complete diagnosis. The following are tests that a physician can administer to determine whether or not a patient is lactose intolerant:

  • Milk Challenge Test
  • Hydrogen Breath Test
  • Lactose Tolerance Test
  • Stool Acidity Test (usually for infants)
  • Intestinal Biopsy

We do not perform all this testing at Granite Peaks Gastroenterology. At the time of your appointment, we will discuss your symptoms and help you decide the best approach. We have offices in Salt Lake and Utah Counties.

Lactose Intolerance Treatment

If you are diagnosed with lactose intolerance, your gastroenterologist will make dietary recommendations for you. It is important to consult with a professional to ensure that you get enough calcium and other minerals from your diet when you eliminate lactose. Lactose intolerant patients may also be deficient in other digestive enzymes – therefore checking for these deficiencies (disaccharidase deficiencies) may be worthwhile if eliminating lactose doesn’t completely resolve your symptoms.

For those who are significantly affected by even small amounts of lactose, over the counter medications are available. Lactaid is a common one. This medication is taken with or prior to eating lactose-containing food to ease and eliminate symptoms. Additionally, affordable lactose-free options are available in milk, cheese, and other dairy products.

Avoiding milk products is the best treatment for those who are symptomatic. Sometimes that doesn’t solve everything though. We have also noticed a lot of overlap between lactase deficiency and other enzyme deficiencies in our patients, so making sure we have the correct diagnosis is always the most important step in caring for our patients.
may marschner pa-c
May Marschner, PA-C
Physician Assistant
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