Can Lactose Intolerance Cause Constipation in Babies?

Lactose intolerance in babies typically causes symptoms such as diarrhea, bloating, gas, and abdominal pain rather than constipation. Lactose intolerance occurs when the body lacks the enzyme lactase, which is needed to digest lactose, a sugar found in milk and dairy products.

When lactose is not properly digested, it can lead to the following symptoms:

  • Diarrhea: Undigested lactose draws water into the intestines, causing loose stools.
  • Bloating and gas: Fermentation of undigested lactose by bacteria in the colon produces gas and bloating.
  • Abdominal pain: The gas and bloating can cause discomfort and cramping.

However, if a baby with lactose intolerance experiences constipation, it might be due to other factors such as:

  1. Dietary Changes: If a baby is switched to a lactose-free formula, the new formula’s composition might contribute to constipation.
  2. Dehydration: Diarrhea caused by lactose intolerance can lead to dehydration, which in turn can cause constipation.
  3. Other Dietary Factors: A low-fiber diet or inadequate fluid intake can also lead to constipation.

If you suspect your baby has lactose intolerance or is experiencing constipation, it is important to consult with a pediatrician. They can help determine the cause of the symptoms and recommend appropriate dietary adjustments or treatments.