Why Do I Get Diarrhea After Eating Greasy Food?

Greasy foods trigger diarrhea because your digestive system struggles to break down high amounts of fat efficiently. When you consume foods high in fat, your gallbladder releases bile to help digest the fats, but excessive amounts can overwhelm your system. This leads to malabsorption, where undigested fats reach your colon and draw water into your intestines, causing loose, watery stools. People with conditions like irritable bowel syndrome, gallbladder disease, or lactose intolerance are particularly susceptible. Studies show that meals containing more than 30 grams of fat can trigger symptoms within 2-4 hours of eating.

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