25/04/2026
💩 Have you ever pooped yourself while running? Because most people have.
Runner's diarrhoea is a real and very common phenomenon — with gut symptoms affecting up to 90% of endurance runners. And with the London Marathon coming up, this one's essential viewing.
The science behind it? Blood gets diverted away from your gut during running, your intestines physically shake, and stress hormones like adrenaline and cortisol speed up gut transit. The result? Unfortunate consequences.
Here's what you can do about it:
— Avoid high fibre and high fat foods before your run
— Stick to simple carbohydrates — pasta, bananas, jam sandwiches
— Stay hydrated with water and electrolytes
— Avoid alcohol, caffeine, and artificial sweeteners
— Wear loose, comfortable clothing
— Know where the toilets are along the route
Full tips and a deeper breakdown in my latest YouTube video — link in bio.
👉 FOLLOW for more health education!
💬 COMMENT any news topics you'd like me to respond to.
⚠️ DISCLAIMER: This video is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional for personal medical concerns.
runner's diarrhoea | runner's stomach | running gut | London Marathon | marathon tips | endurance running | running nutrition | gut health | sports medicine | exercise and digestion | marathon preparation | running advice | irritable bowel | IBS running | health education | doctor explains | Dr Azmain