What should you know about lemon juice for food poisoning?

Food poisoning may cause diarrhoea, vomiting, nausea, abdominal pain, and fever. Lemon juice is acidic and may irritate an already unsettled stomach, particularly if taken undiluted. It does not reliably destroy the cause of an infection inside the body and should not replace oral rehydration. Symptoms can also come from another illness, so the timing of the meal alone cannot confirm the cause.

Take frequent small sips of water or an oral rehydration solution. If vomiting occurs, pause briefly and restart with smaller amounts. Continue light foods as appetite returns, and avoid alcohol and foods that clearly worsen nausea. Wash hands carefully and avoid preparing food for others while you have diarrhoea or vomiting. If you cannot keep fluids down, a clinician can assess dehydration and may consider IV fluid therapy.

Get urgent help for confusion, fainting, severe weakness, blood in vomit or stool, severe abdominal pain, or breathing difficulty. Seek prompt advice for signs of dehydration such as very little urine, a dry mouth, dizziness, or inability to drink. Children, older adults, pregnant people, and those with significant medical conditions may need earlier assessment.

Could this be food poisoning or another cause? How should I replace fluids and salts? Should I avoid any medicines? What signs mean I need urgent treatment?