Title: Lactose Intolerance: Types, Causes, and Treatment
Headings: Everything You Need to Know About Lactose Intolerance
Everything You Need to Know About Lactose Intolerance
Overview
Types of lactose intolerance
Primary lactose intolerance (normal result of aging)
Secondary lactose intolerance (due to illness or injury)
Congenital or developmental lactose intolerance (being born with the condition)
Developmental lactose intolerance
What to look for
How is lactose intolerance diagnosed?
Lactose intolerance test
Hydrogen breath test
Stool acidity test
How is lactose intolerance treated?
Adjusting to a lactose-free diet and lifestyle

Content: This is because as people age, they eat a more diverse diet and rely less on milk. The decline in lactase is gradual. This type of lactose intolerance is more common in people with Asian, African, and Hispanic ancestry. Secondary lactose intolerance (due to illness or injury)
Intestinal diseases such as celiac disease and inflammatory bowel disease (IBD), a surgery, or an injury to your small intestine can also cause lactose intolerance. Lactase levels may be restored if the underlying disorder is treated. Congenital or developmental lactose intolerance (being born with the condition)
In very rare cases, lactose intolerance is inherited. A defective gene can be transmitted from the parents to a child, resulting in the complete absence of lactase in the child. This is referred to as congenital lactose intolerance. In this case, your baby will be intolerant of breast milk. They will have diarrhea as soon as human milk or a formula containing lactose is introduced.