A disgusting simulation breaks down why poop smells, and why it’s brown

Most people don’t give much thought to what happens after flushing, until something smells particularly… aggressive. But the reason our faeces smell the way they do isn’t random, and it actually tells us a lot about digestion, gut bacteria and even our diet. A recent explainer making the rounds online has revived the question, and experts say the science behind the smell is worth understanding. A simulation by Rapture Shorts on YouTube explains the chemistry behind the smell: “When we eat a spoonful of delicious food the food is first broken down in the stomach. The small intestine is responsible for absorbing nutrients and the remaining part enters the large intestine and eventually forms faeces. Bacteria in the large intestine break down incompletely digested food res