Living better with intolerance

Lactose intolerance test: the Breath Hydrogen Test

The Breath Hydrogen Test (BHT) is a test to assess the intestinal digestion of lactose (milk sugar) and to detect lactose intolerance, a syndrome defined by the inability of intestinal cells to break down lactose into simple sugars (glucose and galactose) due to a deficiency in the enzyme lactase. How does it...