 The alternative diagnosis of non-coeliac gluten sensitivity may be made where there is only symptomatic evidence of gluten sensitivity.Gastrointestinal and extraintestinal symptoms of people with non-coeliac gluten sensitivity can be similar to those of coeliac disease, and improve when gluten is removed from the diet, after coeliac disease and wheat allergy are reasonably excluded.Up to 30% of people often continue having or redeveloping symptoms after starting a gluten-free diet.