Stomach Flu vs. Food Poisoning: How To Identify Symptoms

January 31, 2024

Stomach flu and food poisoning are both common gastrointestinal illnesses that can have a significant effect on your well-being. While these conditions share some similarities in symptoms, understanding the differences between the two can help you identify the cause of your discomfort and seek appropriate treatment. In this blog, we’ll explore the key differences between stomach flu and food poisoning, as well as explain when it might be necessary to seek medical attention.

For same-day general illness treatment, visit the walk-in clinic at AFC Urgent Care Ken Caryl. Our medical team specializes in diagnosing and treating a wide range of common conditions, all on a walk-in basis. If you’d like to plan your visit in advance, you can check-in online using the button below!


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Stomach Flu Causes & Symptoms

Stomach flu, medically referred to as viral gastroenteritis, is caused by various viruses, including norovirus, rotavirus, and adenovirus. It is highly contagious and spreads easily through close contact with infected individuals or contaminated surfaces. Stomach flu typically affects the stomach and intestines, leading to a range of symptoms. This condition often begins with feelings of nausea, which may progress to vomiting in severe cases. 

Common symptoms of stomach flu include:

  • Nausea and vomiting
  • Diarrhea
  • Fever
  • Body Aches
  • Headache

Food Poisoning Causes and Symptoms

Food poisoning, on the other hand, occurs when you consume contaminated food or beverages that contain harmful bacteria, viruses, or parasites. The onset of symptoms can vary depending on the type of contaminant and the amount ingested, but typically occurs within hours to days after consuming the contaminated substance. The duration of symptoms can vary depending on the type of contaminate and individual factors. In most cases, food poisoning symptoms resolve within a few days but severe cases may require medical evaluation.

Common symptoms of food poisoning include:

  • Nausea and vomiting
  • Diarrhea
  • Abdominal pain
  • Fever

How To Tell The Difference

While stomach flu and food poisoning share some similar symptoms, there are key differences that can help you identify the cause of your illness. To start, consider the onset of symptoms. Stomach flu symptoms often develop gradually over several hours to a day, while food poisoning symptoms typically occur shortly after consuming contaminated food. Additionally, stomach flu symptoms may last for several days to a week, while symptoms of food poisoning often resolve within a day or two. Fever is more common with food poisoning, especially if the infection is bacterial. Stomach flu can cause a low-grade fever in some cases, but it is not always present. It’s always best to err on the side of caution and consult a medical provider for a professional diagnosis to ensure you follow the appropriate treatment plan.

Get Walk-in Treatment at AFC Urgent Care Ken Caryl

Understanding the differences between stomach flu and food poisoning can help you seek the necessary treatment and prevent complications. If you are unsure about the root cause of your symptoms, don’t hesitate to seek proper treatment from a healthcare provider. At AFC Urgent Care Ken Caryl, our team of certified medical providers specialize quality urgent care services for all patients in the Littleton and Denver, CO area. We accept most health insurance plans and offer low-cost options for any self-paying patient. If you have any additional questions about the services we provide, please contact us directly at (720) 818-8010.

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