ist breiiger stuhlgang normal — can a DNA test help?

Mushy or loose stool is a common but non-specific symptom. Causes range from harmless dietary factors (e.g., excess fiber, fructose) to irritable bowel syndrome, inflammatory bowel disease, or celiac disease. A DNA test can help in specific cases: the HLA-DQ2/DQ8 genetic test for celiac risk has strong evidence – over 95% of celiac patients carry these variants. However, 30–40% of the general population carry them, yet only 1–3% develop celiac disease. A positive result indicates increased risk, not diagnosis. For other causes like IBS or food intolerances, DNA tests offer no reliable guidance; evidence is weak or marketing-driven. A microbiome test may help with bloating but not directly with mushy stool. Bottom line: a DNA test is only useful if celiac disease is suspected – and even then, diagnosis requires blood antibodies and biopsy. Persistent mushy stool warrants a doctor's evaluation.