Can you lose weight from a stomach bug

Why You Might Lose Weight When You're Sick

Most experts do not recommend fasting or following a restricted diet when you have viral gastroenteritis. The NIDDK translates and disseminates research findings to increase knowledge and understanding about health and disease among patients, health professionals, and the public. When children have viral gastroenteritis, parents and caretakers can give children what they usually eat as soon as their appetite returns.


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What should I avoid eating if I have viral gastroenteritis? For some people, certain food ingredients may make symptoms such as diarrhea worse, including drinks with caffeine, such as coffee and tea, and some soft drinks. Some people recovering from viral gastroenteritis have problems digesting lactose for up to a month or more afterwards.

Previous: Treatment. The stomach flu also has other unpleasant symptoms, such as diarrhea, vomiting and nausea.


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  4. A variety of viruses can cause stomach flu, and it can affect children as well as adults. One of the effects of the stomach flu can be temporary weight loss. Stomach flu symptoms can range in severity from mild to severe but generally consist of abdominal pain, stomach cramping, diarrhea, nausea and vomiting. You may also experience other symptoms such as chills, muscle pain, excessive sweating, clamminess, joint stiffness and weight loss.

    Your health-care provider may perform a physical exam to check for sunken eyes, low blood pressure and ask if your mouth feels dry or sticky.

    Sorry, Kim Kardashian, But Losing Weight From the Flu Is Nothing to Brag About

    This can indicate dehydration. Weight loss associated with the stomach flu is usually temporary weight loss. Sometimes this type of weight loss is referred to as unintentional weight loss, which means that you did not exercise or diet to lose the weight. If any weight is lost, most of it is only water weight. You may lose water weight due to the volume of water you lose with diarrhea and vomiting.

    What should I avoid eating if I have viral gastroenteritis?

    You may also notice a slight weight loss due to the stomach flu due to lack of appetite while you are feeling ill. With a combination of lost appetite, diarrhea and vomiting, you may lose a few pounds. Typically, the weight will return after normal eating habits resume. Symptoms of the stomach flu may appear within four to 48 hours after contracting the virus.