What should you know about food poisoning gastroenteritis?

Gastroenteritis affects the digestive tract. Foodborne germs or toxins can trigger it, while viruses such as rotavirus can spread between people and cause a similar pattern. Diarrhoea, nausea, vomiting, abdominal cramps, fever, and reduced appetite are common features. The combination and intensity vary, and symptoms alone cannot identify the exact cause. Fluid leaves the body through vomiting and loose stools, which can lead to dehydration when drinking does not keep pace with those losses.

Drink small, frequent amounts and consider an oral rehydration solution if stools are frequent or vomiting has occurred. Pause briefly after vomiting, then try small sips again rather than taking a large drink at once. Eat when hungry, choosing simple foods if richer meals worsen nausea. Wash hands with soap and water, avoid preparing meals for others while unwell, and clean shared bathroom surfaces. Do not give children or take medicines for diarrhoea without checking that they are appropriate.

Seek urgent care if you are confused, faint, unable to drink, passing very little urine, or showing severe weakness. Blood in vomit or stool, severe abdominal pain, breathing difficulty, or a concerning fever needs prompt assessment. Contact a clinician when symptoms are persistent, worsening, or preventing adequate fluid intake. Babies, older adults, pregnant people, and those with chronic illness may need earlier advice because dehydration can develop rapidly.

Ask whether the illness is more consistent with foodborne gastroenteritis or another infection, whether testing is indicated, and which fluids or medicines fit your situation. Explain your urine output, vomiting, stool changes, fever, recent meals, sick contacts, travel, and medical history. Clarify when you can return to work, school, or food preparation.