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Lactose Intolerance (Children)

Difficulty digesting lactose causes gastrointestinal symptoms but is different from milk allergy.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Çocuk Sağlığı ve Hastalıkları department. Book Appointment →

What is Lactose Intolerance (Children)?

Lactose intolerance is a condition that occurs when lactose, the milk sugar, cannot be sufficiently broken down into glucose and galactose by the lactase enzyme in the small intestine. Undigested lactose passes into the large intestine causing bacterial fermentation and a picture of gas-diarrhea-cramp.

Primary lactase deficiency (adult-type lactase deficiency) is genetically determined and a common condition seen in 65% of the world population. Secondary lactase deficiency develops temporarily after intestinal damage such as gastroenteritis, celiac disease or Crohn's.

Lactose intolerance should not be confused with cow's milk protein allergy; in intolerance, the immune system is not involved, and small amounts of dairy products can usually be tolerated.

Symptoms

Abdominal pain 30 minutes-2 hours after milk or dairy consumption
Bloating and gas
Diarrhea (osmotic, watery stool)
Nausea (in severe cases)
Symptoms are proportional to amount consumed
NO skin, respiratory or anaphylactic findings (difference from allergy)

Risk Factors

Turkish and Middle Eastern ethnic groups (genetic lactase deficiency common)
Past rotavirus or other viral gastroenteritis
Celiac disease or inflammatory bowel disease
Prematurity (lactase maturation completed late)
History of small bowel surgery
Long-term antibiotic use

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • In recurrent gastrointestinal symptoms after milk
  • In suspicion of growth retardation or calcium deficiency
  • To investigate the cause of secondary lactase deficiency
  • For diagnosis with lactose loading test or breath test

Treatment Methods

01
Lactose-restricted diet: individualized according to personal tolerance
02
Fermented dairy products (yogurt, hard cheese): usually better tolerated
03
Lactose-free milk and dairy: taste and nutritional value preserved
04
Lactase enzyme supplements: taken before milk consumption
05
Calcium and vitamin D replacement: when avoiding milk
06
In secondary lactase deficiency: may improve after treatment of underlying disease

Which Department to Visit?

You can visit our Çocuk Sağlığı ve Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Çocuk Sağlığı ve Hastalıkları Department

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You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.