Food poisoning without vomiting: what to know

Food poisoning does not have to include vomiting. A person may instead have sudden diarrhoea, abdominal cramps, nausea, tiredness or fever. Without vomiting, drinking may be easier, but frequent watery stools can still remove fluid and salts. Symptoms can overlap with a stomach virus or another bowel problem, so the timing, severity and duration help determine whether medical assessment is appropriate.

Sip water regularly and consider Oral Rehydration Therapy if diarrhoea is frequent or you feel washed out. Eat light meals as tolerated, then gradually return to your usual diet. Avoid alcohol and foods that clearly worsen symptoms. Wash hands thoroughly after using the toilet and before handling food. Do not use antibiotics or symptom-stopping medicines without professional advice, particularly if there is blood in the stool or significant pain.

Arrange medical advice for blood or black stool, severe or localised abdominal pain, signs of dehydration, persistent fever, worsening diarrhoea, or an inability to maintain fluid intake. Seek urgent help for fainting, confusion, extreme weakness or breathing difficulty. People who are pregnant, very young, older, immunocompromised or living with serious chronic illness should seek advice sooner when symptoms are more than mild.

Ask whether your symptoms need testing, how much oral rehydration is suitable, and whether any regular medicines should be adjusted. Note the number and appearance of stools, your fluid intake, urine output, pain location and temperature before the consultation.