Does food poisoning cause diarrhoea?

When the digestive tract reacts to contaminated food or drink, it may move contents quickly and release extra fluid. This produces loose or watery stools and can happen with cramps, nausea, vomiting, or fever. The start time varies, and diarrhoea may also come from a virus, medicine, food intolerance, or another bowel condition. A symptom pattern can suggest food poisoning, but it cannot confirm the cause by itself. Consider recent meals, travel, sick contacts, and whether anyone who ate the same food is unwell.

Replace lost fluid with frequent small sips of water or an oral rehydration drink. Eat when hungry, choosing foods that feel easy to tolerate, and avoid alcohol until you recover. Wash hands with soap and water after using the toilet and before handling food. Do not prepare meals for other people while you have diarrhoea. Ask a pharmacist before using an anti-diarrhoeal medicine, particularly if there is fever or blood in the stool.

Seek urgent care for blood or black stool, severe abdominal pain, repeated vomiting, faintness, confusion, or signs of significant dehydration. Arrange medical advice if diarrhoea persists, keeps recurring, or is difficult to manage. Get help earlier for a baby, older adult, pregnant person, or anyone with a weakened immune system or a condition that increases dehydration risk.

Ask whether your symptoms fit food poisoning, how to replace fluids, and whether you need an examination or stool testing. Mention recent antibiotics, travel, medical conditions, and any blood, fever, or vomiting.