Gluten intolerance is a fairly common problem.
It is characterized by adverse reactions to gluten, a protein found in wheat, barley and rye.
Celiac disease is the most severe form of gluten intolerance.
It is an autoimmune disease that affects about 1% of the population and may lead to damage in the digestive system.
However, 0.5–13% of people may also have non-celiac gluten sensitivity, a milder form of gluten intolerance that can still cause problems.
Both forms of gluten intolerance can cause widespread symptoms, many of which have nothing to do with digestion.
Here are the 14 main signs and symptoms of gluten intolerance.