Osmotic diarrhea is when undigested material reduces how much water and electrolytes the bowels can absorb. It can occur when a person’s body has difficulty digesting certain foods, such as lactose.

Diarrhoea is no one’s favourite topic, and when this less-than-ideal bathroom experience strikes, you want to make it stop ASAP. Food may be the last thing on your mind when you’re dealing with a ...