Enzyme studies on serum revealed normal levels ... and glucose tolerance tests were performed on the patients with fructose intolerance, nonaffected blood relatives and controls.

There are two main types of fructose intolerance: This is an uncommon genetic condition characterised by a lack of the enzyme aldolase B, which is required for fructose metabolism, according to a ...

Fructans are strands of fructose subunits, and they are found in several grains ... She seems to have a lactose intolerance and probably also an oligosaccharide intolerance, but the good news is that ...