Nausea after eating: What are the causes?

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There are various conditions that causes nausea after eating. The common causes include food poisoning or even pregnancy.

It is vital to take a close look at the symptoms to pinpoint the possible cause of nausea. Once the issue has been identified, the doctor can determine the ideal treatment.

What are the possible causes?

  • Food allergies – certain foods such as eggs, shellfish or nuts might be identified by the body as a threat. Upon eating these foods, the immune system triggers the release of histamine and other chemicals that instigate the allergy symptoms that range from hives, mouth swelling and even nausea.
  • Stomach virus
    Nausea that occurs occasionally after eating is not an issue for concern, but it if occurs up to a week, a doctor should be consulted.
  • Food poisoning
  • Pregnancy – the initial signs of being pregnant is a queasy, uneasy sensation usually at the 2nd month of pregnancy
  • Acid reflux
  • Gallbladder disease
  • Stress and anxiety
  • Cancer treatment
  • Motion sickness
  • Irritable bowel syndrome

When to consult a doctor

Nausea that occurs occasionally after eating is not an issue for concern, but it if occurs up to a week, a doctor should be consulted. A doctor must be consulted if any of these symptoms are present:

  • Chest pain
  • Blood-streak stool or vomit
  • Confusion
  • Fever of 101.5 degrees F or higher
  • Diarrhea lasting for more than a few days
  • Excessive thirst, weakness, reducing urine production or dizziness (dehydration)
  • Rapid heart rate
  • Intense abdominal pain
  • Severe vomiting or difficulty in keeping food down

The outlook is usually based on the exact cause of nausea and how it is treated. Generally, nausea after a meal eventually gets better once the root of the problem is dealt with.


  • Provide the individual with ice cubes to suck on
  • Avoid fried, greasy or spicy foods
  • Eat and drink in a steady manner
  • Eat bland foods such as toast or crackers
  • It is recommended to relax after eating to allow food to be digested properly
  • Eat several small meals throughout the day
  • Serve foods cold or at room temperature if the smell of cooked food makes the individual feel queasy.

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