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Symptoms of food poisoning often include upset stomach, diarrhea and vomiting. Symptoms usually start within hours or several days of eating the food. Most people have mild illness and get better without treatment.
A diagnosis is based on a physical exam and a review of things that may be causing vomiting, diarrhea or other symptoms. Questions from your health care provider will cover: Your symptoms. Food or drinks you've had recently. Symptoms in people who ate with you. Recent changes in the drugs you take. Recent travel.
Some people with salmonella infection have no symptoms. Most people develop diarrhea, fever and stomach (abdominal) cramps within 8 to 72 hours after exposure. Most healthy people recover within a few days to a week without specific treatment.
Symptoms of food poisoning vary with the source of contamination. They may include: Diarrhea, which may be bloody. Nausea. Belly pain. Vomiting. Dehydration. Low-grade fever (sometimes). If you are very dehydrated, you might notice:
Poisoning symptoms can mimic other conditions, such as seizure, alcohol intoxication, stroke and insulin reaction. Symptoms of poisoning may include: Burns or redness around the mouth and lips. Breath that smells like chemicals, such as gasoline or paint thinner. Vomiting. Difficulty breathing. Drowsiness. Confusion or other altered mental status.
Botulism is a rare but serious condition caused by a toxin that attacks the body's nerves. Botulism may cause life-threatening symptoms. A type of bacteria called Clostridium botulinum produces the toxin. Botulism can occur as the result of food or wound contamination.
Learn about lead poisoning symptoms and treatment of lead exposure in children and adults. Explore ways to keep your kids safe from lead exposure.
Symptoms might begin a few days after you've eaten contaminated food, but it can take 30 days or more before the first signs and symptoms of infection begin. If the listeria infection spreads to your nervous system, signs and symptoms can include: Headache; Stiff neck; Confusion or changes in alertness; Loss of balance; Convulsions
Food poisoning. Sometimes food poisoning can mimic an allergic reaction. Bacteria in spoiled tuna and other fish also can make a toxin that triggers harmful reactions.
Definition & facts of food poisoning. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/digestive-diseases/food-poisoning/definition-facts. Accessed Nov. 7, 2022. Symptoms & causes of food poisoning.