Malnutrition
Preventing dehydration

Food and drink can help prevent dehydration in malnourished people with diarrhea. Eating (or breastfeeding, among infants) should resume as soon as possible. Sugary beverages like soft drinks, fruit juices, and sweetened teas are not recommended as they may worsen diarrhea.

Malnourished people with diarrhea (especially children) should be encouraged to drink fluids; the best choices are fluids with modest amounts of sugar and salt, like vegetable broth or salted rice water. If clean water is available, they should be encouraged to drink that too. Malnourished people should be allowed to drink as much as they want, unless signs of swelling emerge.

Babies can be given small amounts of fluids via an eyedropper or a syringe without the needle. Children under two should receive a teaspoon of fluid every one to two minutes; older children and adults should take frequent sips of fluids directly from a cup. After the first two hours, fluids and foods should be alternated, rehydration should be continued at the same rate or more slowly, depending on how much fluid the child wants and whether they are having ongoing diarrhea.

If vomiting occurs, fluids can be paused for 5–10 minutes and then restarted more slowly. Vomiting rarely prevents rehydration, since fluids are still absorbed and vomiting is usually short-term.
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