[Lactose intolerance. Genotyping simplifies and improves diagnosis]. / Laktoseintolerans. Gentest forenkler og forbedrer diagnostikken.

The molecular genetics of adult-type hypolactasia is reviewed. Genotyping for the LCT-13910C>T polymorphism as a standard first-stage diagnostic approach for the diagnosis of adult-type hypolactasia and a replacement of the lactose tolerance test is suggested.