The four reactions include celiac disease, allergy, gluten intolerance, and gluten sensitivity.
And, what's more, the diagnosis for gluten sensitivity is a clinical one because even testing for an immune response through antibody lab tests will not reveal sensitivity to gluten. A person could experience months or more likely, years, of health concerns and a general feeling of being unwell, or be diagnosed with IBS (Irritable Bowel Syndrome) or IBD (Irritable Bowel Disease). Additionally, a patient might even be told the feeling of unwellness is just "in his or her head."
One must be willing to pursue that gluten could be the cause of any illness or health problem.
There is so much to be said about this tiny protein. More exploration coming soon!