Title: Is my baby lactose intolerant? • KellyMom.com
Headings: Is my baby lactose intolerant?
Is my baby lactose intolerant?
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Content: Primary lactose intolerance
Congenital lactose intolerance
Secondary lactose intolerance
Primary lactose intolerance (also called developmental, late-onset or adult lactose intolerance) is relatively common in adults (and more common in some nationalities than others), and is caused by a slow decrease in the body’s production of lactase, the enzyme that breaks down lactose (milk sugar). This occurs gradually, over a period of years, and never appears before 2-5 years old and often not until young adulthood. Almost all adults who are lactose intolerant have this type of lactose intolerance, which is not related to lactose intolerance in babies. . Congenital lactose intolerance and similar congenital disorders
Congenital lactose intolerance is very rare and is an inherited metabolic disorder rather than an allergy. This disorder is generally apparent within a few days after birth and is characterized by severe diarrhea, vomiting, dehydration and failure to thrive. It resolves after the age of six months. A similar, less severe, metabolic disorder is congenital lactase deficiency. This disorder, apparent within 10 days of birth, occurs when brush-border lactase activity (required for the digestion of lactose) in the small intestine is low or absent at birth and is characterized by diarrhea and malabsorption. It is also very rare.