Protecting your gut on antibiotics: a dietitian's practical plan

After a course of antibiotics upset her gut, the author spoke with registered dietitian Avery Zenker, who says antibiotic effects on the gut vary by drug and person. To support recovery, prioritize hydration, a varied, fiber-rich diet, and prebiotic foods (like oats, bananas, garlic, apples, legumes). Limit fried foods, sugar, alcohol, and highly acidic or spicy items if symptoms occur. Probiotics aren’t guaranteed to help and aren’t always necessary; treat gut health during and after antibiotics like any other day, increasing fiber gradually and checking with a doctor about any interactions.