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Stomach Flu and Weight Loss

by
author image Derek Buckner
Derek Buckner has been writing professionally since 2005, specializing in diet, nutrition and general health. He has been published in "Today's Dietitian," "Food Essentials" and "Eating Well Magazine," among others. Buckner is a registered dietitian and holds a Bachelor of Science in nutrition and food science from Drexel University.
Stomach Flu and Weight Loss
Uncomfortable side effects of stomach flu may lead to weight loss. Photo Credit Jupiterimages/Photos.com/Getty Images

The stomach flu is caused by a viral infection and can leave you feeling weak, dehydrated and tired. The stomach flu also has other unpleasant symptoms, such as diarrhea, vomiting and nausea. 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

Stomach Flu and Weight Loss
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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. This can indicate dehydration.

Weight Loss

Stomach Flu and Weight Loss
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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. 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.

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Time Frame

Stomach Flu and Weight Loss
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Symptoms of the stomach flu may appear within four to 48 hours after contracting the virus. Most children and adults begin to feel better within a few days. The amount of time you will suffer from stomach flu will depend on how your body responds to the viral infection and how quickly the virus gets out of your system. If symptoms occur for more than several days, seek help from your physician.

Warnings and Concerns

Stomach Flu and Weight Loss
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One common concern about the stomach flu is dehydration. You can easily become dehydrated when you have the stomach flu, and it can be worse for those who have weakened immune systems, the elderly and infants. Consuming sugary beverages such as sweetened tea, soda or juices with added sugars can make diarrhea worse, which can cause you to become severely dehydrated. Avoid all types of sugar, even if the sugar is in food, such as a candy bar or dessert item. Do not gulp liquids down, no matter how thirsty you become. Gulping liquids can cause you to vomit.

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References

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