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What are the Different Food Poisoning Symptoms?

B. Miller
B. Miller

Food poisoning is a fairly common occurrence, and though in most cases it is mild and resolves itself within a few days, it can be deadly. For that reason, it is important to recognize food poisoning symptoms, and to visit an emergency room or doctor if necessary. In general, the most common food poisoning symptoms include nausea, vomiting, or diarrhea.

Food poisoning is commonly caused when one consumes food that was not handled safely in storage or preparation, leading to growth of harmful bacteria. Food poisoning symptoms may appear within half an hour of eating contaminated food, to approximately 18 hours after, and will generally resolve within 48 hours. However, some strains of food poisoning can last up to ten days.

Sports drinks can help replenish electrolytes after food poisoning.
Sports drinks can help replenish electrolytes after food poisoning.

Food poisoning symptoms may include abdominal pain, fever, loss of appetite, nausea, vomiting, diarrhea or loose stools, and headache. These symptoms may be severe or mild, depending on the particular strain of bacteria that is causing the food poisoning. In general, it is possible to treat food poisoning safely at home, and medication is usually not necessary.

A Salmonella bacterium, a common cause of food poisoning.
A Salmonella bacterium, a common cause of food poisoning.

The most important treatment for food poisoning is to stay hydrated by sipping clear liquids. Sports drinks should be diluted with water, to cut down on the amount of sugar being ingested. Caffeinated drinks should also be avoided. Preventing dehydration is the single most important goal when treating food poisoning, as dehydration can be deadly. If clear liquids cannot be kept down, it is likely that a visit to the emergency room will be necessary to receive intravenous fluids.

Blurred vision is a symptom of food poisoning.
Blurred vision is a symptom of food poisoning.

Once vomiting or diarrhea has stopped, one can then treat food poisoning by resuming a light, bland diet. This means bland foods such as plain rice, toast, and milk. Symptoms should then continue to improve. If food poisoning symptoms do not improve significantly in two days, it is time to visit the doctor.

In addition, it is necessary to go to the doctor or emergency room if other people who have eaten the same foods also have symptoms, or if the patient has recently returned from traveling overseas. If the patient has trouble breathing or swallowing, dizziness, is vomiting blood or has bloody stools, muscle weakness, blurred vision, a persistent high fever, swollen abdomen, decreased urination, yellowing skin, or loses consciousness at any point, it is necessary to go immediately to the emergency room. In addition, if the person is younger than age three or has another medical condition that weakens the immune system, he or she should visit their doctor to receive treatment.

Discussion Comments

GraniteChief

I had food poisoning once, it was a horrible experience. I drank lots of water and electrolytes for days. I had extreme vomiting and other symptoms as mentioned. Sometimes carbonated water works with the stomach pain symptoms.

I think it's a good practice to look at the cleanliness of the kitchen at places you dine out. And be careful to look at the freshness of your food before you cook or eat it. I sure learned the hard way.

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    • Sports drinks can help replenish electrolytes after food poisoning.
      By: travis manley
      Sports drinks can help replenish electrolytes after food poisoning.
    • A Salmonella bacterium, a common cause of food poisoning.
      By: Lyuba Bunakova
      A Salmonella bacterium, a common cause of food poisoning.
    • Blurred vision is a symptom of food poisoning.
      By: Africa Studio
      Blurred vision is a symptom of food poisoning.
    • After a bout of food poisoning, cooked rice should be included as part of a bland diet.
      By: womue
      After a bout of food poisoning, cooked rice should be included as part of a bland diet.
    • Food poisoning may cause an upset stomach and vomiting.
      By: Tom Wang
      Food poisoning may cause an upset stomach and vomiting.
    • A severe case of food poisoning may require hospitalization and intravenous fluids.
      By: ShpilbergStudios
      A severe case of food poisoning may require hospitalization and intravenous fluids.
    • Food poisoning can cause severe stomach cramps and nausea.
      By: Kaspars Grinvalds
      Food poisoning can cause severe stomach cramps and nausea.