Table 1.

Differential diagnosis listing^a of related gastrointestinal disorders⁴⁰

Disease/Pathology	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Celiac disease	×	×	×			×	×	×	×	×	×	×	×	×			×
Nonceliac gluten sensitivity	×	×	×	×	×	×		×	×	×		×		×				×
Wheat allergy	×	×		×	×	×									×	×		×
Crohn’s disease	×	×	×	×	×	×	×			×				×				×
Irritable bowel syndrome	×	×	×		×		×							×
Sjrögren syndrome				×	×			×		×

^aThe signs and symptoms are as follows: 1, abdominal pain; 2, diarrhea; 3, constipation; 4, vomiting; 5, nausea; 6, headache; 7, gas/flatulence/bloating; 8, musculoskeletal pain/arthralgia; 9, brain “fog”; 10, fatigue; 11, ataxia; 12, paresthesia in limbs (numbness/tingling); 13, dermatitis herpetiformis; 14, weight loss; 15, eczema; 16, asthma; 17, diabetes; 18, rash.