Most people who think they're gluten intolerant actually struggle with fructans, not gluten—a Gastroenterology study found people without celiac disease had fewer symptoms eating gluten bars than placebos. Dr. Will Bulsiewicz explains why bloating, gas, and constipation are often misdiagnosed, revealing how your microbiome, intestinal motility, and even glyphosate-sprayed wheat drive digestive symptoms far more than gluten itself. Sixty percent of stool weight is bacteria from your microbiome, which ferment undigested fiber and produce gas when constipation traps them in your intestines.