Lactose intolerance quiz

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Yoshinori Abe

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Yoshinori Abe, MD

Internal medicine

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Learn more about Lactose intolerance

Content updated on Jun 1, 2022

What is lactose intolerance?

A condition where milk is poorly digested and absorbed. This happens more commonly in adults as the enzyme for digesting milk (lactase) in childhood decreases with age. Other risk factors include recent gut infections and ethnicity (non-Caucasian).

Symptoms related to lactose intolerance

  • Diarrhea that improved with lactose-free milk

  • Abdominal pain

  • Diarrhea

  • Stomach feels bloated

Questions your doctor may ask to check for lactose intolerance

Your doctor may ask these questions to diagnose lactose intolerance

  • Does your diarrhea improve when you drink lactose-free milk?

  • Do you have abdominal pain (stomach ache)?

  • Do you have loose stools or diarrhea?

  • Do you feel that your abdomen (stomach) is bloated or has a lot of gas?

Treatment for lactose intolerance

Decreasing milk consumption will relieve symptoms. Other options include switching to lactose-free milk, or taking lactase supplements before eating dairy products.

View the symptoms of Lactose intolerance

References

  • Di Costanzo M, Berni Canani R. Lactose Intolerance: Common Misunderstandings. Ann Nutr Metab. 2018;73 Suppl 4:30-37. doi: 10.1159/000493669. Epub 2019 Feb 19. PMID: 30783042.

    https://www.karger.com/Article/FullText/493669

  • Szilagyi A, Ishayek N. Lactose Intolerance, Dairy Avoidance, and Treatment Options. Nutrients. 2018 Dec 15;10(12):1994. doi: 10.3390/nu10121994. PMID: 30558337; PMCID: PMC6316316.

    https://www.mdpi.com/2072-6643/10/12/1994

  • Deng Y, Misselwitz B, Dai N, Fox M. Lactose Intolerance in Adults: Biological Mechanism and Dietary Management. Nutrients. 2015 Sep 18;7(9):8020-35. doi: 10.3390/nu7095380. PMID: 26393648; PMCID: PMC4586575.

    https://www.mdpi.com/2072-6643/7/9/5380

Yoshinori Abe

Medically Reviewed By:

Yoshinori Abe, MD

Internal medicine

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