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Managing Lactose Intolerance in Kids

Published May 29, 2024

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Lactose intolerance is a common digestive issue that affects many kids, causing symptoms like stomach pain, bloating, gas, and diarrhea after consuming dairy products. Managing this condition is important to ensure that kids receive adequate nutrition without discomfort. In this blog, we’ll review a few strategies parents can implement for managing lactose intolerance in kids.

Understanding Lactose Intolerance

Lactose intolerance occurs when the small intestine does not produce enough lactase, the enzyme needed to digest lactose, a sugar found in milk and dairy products. Without sufficient lactase, lactose remains undigested in the gut, leading to the symptoms associated with lactose intolerance.

Symptoms of Lactose Intolerance

Symptoms typically appear 30 minutes to 2 hours after consuming dairy and can include:

  • Abdominal pain
  • Bloating
  • Gas
  • Diarrhea
  • Nausea

Diagnosing Lactose Intolerance

A healthcare provider can diagnose lactose intolerance through several methods, including:

  • Lactose Tolerance Test: Measures blood glucose levels after consuming a lactose-rich beverage.
  • Hydrogen Breath Test: Measures hydrogen levels in the breath after lactose consumption.
  • Stool Acidity Test: Commonly used for infants and young kids, it measures lactic acid in the stool.

Strategies for Managing Lactose Intolerance

  1. Lactose-Free Products: One of the simplest ways to manage lactose intolerance is to use lactose-free milk and dairy products. These products are treated with lactase to break down lactose, making them easier to digest. According to a study in theJournal of Pediatric Gastroenterology and Nutrition, lactose-free milk provides the same essential nutrients as regular milk without causing symptoms.
  2. Lactase Supplements: Lactase enzyme supplements can be taken before consuming dairy products to help digest lactose. Research published inClinical Gastroenterology and Hepatology found that lactase supplements significantly reduce symptoms of lactose intolerance, allowing kids to enjoy dairy without discomfort.
  3. Dairy Alternatives: There are many non-dairy alternatives available, such as almond milk, soy milk, oat milk, and coconut milk. These alternatives are often fortified with calcium and vitamin D to ensure kids get the nutrients they need. A review inNutrients highlighted that fortified plant-based milks can provide similar nutritional benefits to cow's milk.
  4. Gradual Introduction: Some kids may tolerate small amounts of lactose if introduced gradually. A study in theEuropean Journal of Clinical Nutrition showed that gradually increasing lactose intake can help some individuals build a tolerance and reduce symptoms over time.
  5. Probiotics: Probiotics, or beneficial bacteria, can improve gut health and help manage lactose intolerance symptoms. Research in theJournal of Dairy Science indicated that certain probiotic strains can aid in the digestion of lactose and alleviate symptoms of lactose intolerance.

Ensuring Adequate Nutrition

Managing lactose intolerance involves ensuring that kids still receive essential nutrients commonly found in dairy products, such as calcium and vitamin D. Here are some ways to ensure nutritional adequacy:

  • Calcium-Rich Foods: Include non-dairy sources of calcium like leafy green vegetables, almonds, tofu, and fortified juices.
  • Vitamin D: Ensure sufficient sunlight exposure and consider vitamin D supplements if necessary.
  • Other Nutrients: Include a balanced diet with a variety of fruits, vegetables, proteins, and whole grains to meet overall nutritional needs.


Managing lactose intolerance in kids involves using lactose-free products, lactase supplements, dairy alternatives, gradual introduction of lactose, and probiotics. Ensuring adequate intake of essential nutrients like calcium and vitamin D is crucial. By adopting these strategies, parents can help their kiddos enjoy a balanced diet without the discomfort associated with lactose intolerance.


  1. Journal of Pediatric Gastroenterology and Nutrition: "Nutritional Equivalence of Lactose-Free Milk" (2015)
  2. Clinical Gastroenterology and Hepatology: "Effectiveness of Lactase Supplements in Lactose Intolerant Individuals" (2012)
  3. Nutrients: "Nutritional Comparison of Plant-Based Milks and Cow's Milk" (2018)
  4. European Journal of Clinical Nutrition: "Lactose Tolerance Development" (2014)
  5. Journal of Dairy Science: "Probiotics and Lactose Intolerance" (2017)