In the United States, fewer cases of CD have been found compared to other countries. The incidence of celiac disease and of wheat allergy is estimated each to lie at around 1% of the population. There has been a 6.4 increase in the case reports of celiac disease between 1990 and 2009. The incidence of NCGS is unknown; some estimates range from 0.6% to 6%, and a systematic review of 2015 reported on studies with NCGS prevalence rates between 0.5% and 13%. In Europe, the average consumption of<unk>  is 10g to 20g per day, with parts of the population reaching 50g or more per day.
Gluten-related disorders
Glycogen storage disease
Inborn errors of carbohydrate metabolism
Gerstmann–Sträussler–Scheinker syndrome
Sandhoff disease
Protein poisoning
Glycine encephalopathy
Gangliosidosis