4 doctors weighed in:

My sister says she has lactose intolerance. Are family members more likely to get the same thing?

4 doctors weighed in
Dr. Jeffrey Crespin
Internal Medicine - Gastroenterology
1 doctor agrees

In brief: Yes

Lactose intolerance is genetic.
So if your sister has it, you are more likely to have it.

In brief: Yes

Lactose intolerance is genetic.
So if your sister has it, you are more likely to have it.
Dr. Jeffrey Crespin
Dr. Jeffrey Crespin
Thank
Dr. Charles Cattano
Internal Medicine - Gastroenterology
1 doctor agrees

In brief: GeneticMalabsorption

Defects in lactose absorption can be acquired (due to inflammatory conditions of the intestine) or congenital.
Adult lactase deficiency (hypolactasia) is autosomal recessive (ar) & present in >75% of non-caucasians & 20% of caucasians. Congenital lactase deficiency (ar) is acute watery diarrhea in infants. Congenital lactose intolerance (autosomal dominant) can affect liver, kidney, brain, & eyes.

In brief: GeneticMalabsorption

Defects in lactose absorption can be acquired (due to inflammatory conditions of the intestine) or congenital.
Adult lactase deficiency (hypolactasia) is autosomal recessive (ar) & present in >75% of non-caucasians & 20% of caucasians. Congenital lactase deficiency (ar) is acute watery diarrhea in infants. Congenital lactose intolerance (autosomal dominant) can affect liver, kidney, brain, & eyes.
Dr. Charles Cattano
Dr. Charles Cattano
Thank
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