Is Lactase Intolerance Genetic?
How likely you are to continue producing lactase, the enzyme that aids in lactose digestion, is determined by your genes. The kinds of bacteria in your stomach and how sensitive your gut is may also be somewhat influenced by your genes. While some bacteria utilize lactose to produce gas, others use it to produce lactic acid, which could not produce any symptoms.
Lactose malabsorption and lactose intolerance is more likely to occur in people whose genetic profile is:
- Hispanic
- Asian
- Native American
You are more likely to have lactose persistence and lactose tolerance if your genetic profile is:
- African
- Middle Eastern
- Northern European
Very rarely is congenital lactase deficiency a birth defect. This hereditary condition results in lactose intolerance from birth.