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Doctor insights on: How Long Does It Take To Get Food Poisoning

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How long does it take to get food poisoning? I am feeling sick all of a sudden. An hour ago i had a crab salad to eat...Does it take longer for food poisoning to take hold? Could it be that?

Symptoms : Symptoms of food poisoning usually start between four to 48 hours after eating contaminated food. It is usually because you have eaten food contaminated with bacteria or other toxins. Common symptoms include diarrhea, nausea, vomiting, stomach cramps, loose bowel movements, aching muscles and possibly a fever. I don't know if you have food poisoning, but if you do it could be from a meal earlier today or even from something that you ate yesterday. ...Read more

Dr. Heidi Fowler
408 doctors shared insights

Food Poisoning (Definition)

Food poisoning, also known as foodborne illness, is an illness coming from food contaminated by bacteria, viruses, parasites, toxins, or other substances. Anyone can be at risk, but pregnant women, older adults, and people with chronic ...Read more


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How long does it take for symptoms of food poisoning to start? would I know within 5 hours?

How long does it take for symptoms of food poisoning to start? would I know within 5 hours?

Variable: There are different types of food poisoning - some are caused by viral illness, some by bacteria, and others from exotoxins produced by bacteria. Symptoms such as nausea, vomiting, stomach cramping and diarrhea may occur within minutes to a day or two. ...Read more

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How long does it take to develop symptoms from food poisoning?

Varies: Staph food poisoning: preformed toxin (in creamy, mayonaise foods), onset 4-8 h after tainted food. Symptoms: nausea, vomiting, fever, diarrhea; lasts 24-48 hours. Scombroid poisoning (fresh tuna, grouper, snapper, etc): tasteless toxin, stable to cooking, histamine release; symptoms within 1/2-3h; flushing, palpitations, cramps, diarrhea; lasts 24-48h. Others: onset up to 5 d after exposure. ...Read more

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If you are being tested for food poisoning - how long does it take for the tests to be done?

Generally 1-2 days: Some of the tests can be done quickly such as assays for toxins or antigens. But many cases are caused by ingestion of bacteria and those have to grow in a culture to be identified. ...Read more

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How long does it take for food poisoning to go away?

How long does it take for food poisoning to go away?

3 days to a week: For the top food-borne illnesses like salmonella and shigella the symptoms usually take 4 to 7 days to resolve. A common diarrhea caused by staph which is actually a toxin produced by the bacteria resolves in 24 hours. An organism like yersinia can take up to 3 weeks to resolve. ...Read more

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How long does it take to cure food poisoning?

Time will tell: If you have a not too serious bacterial or spoiled food, then a day of nausea, vomiting, then diarrhea usually occurs. Unfortunately there are bad bugs out there that if your health is not the best, can result in death. If you are "sick" then weak care immediately to make sure you will recover. ...Read more

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How long does it take food poisoning to show up if you eat unsanitary food?

6-72 hours: It depends on the infection but at least 6 hours and generally less than 48 (but not always). ...Read more

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How long does it take for food poisoning symptoms to show up after exotic dining out?

Quick: Acute food poisoning is usually caused by ingestion of a toxin and the symptoms usually start within an hour. Did you see bridesmaids? ...Read more

Dr. Heidi Fowler
3,342 doctors shared insights

Nutrition (Definition)

Nutrition is the synergistic combination of nutrients found in food and water that allows the human body to perform all essential ...Read more