Drinks to Prevent Dehydration When Your Child is Vomiting

By: Meghan Horn, MD, FAAP & Christine Waasdorp Hurtado, MD, FAAP

When your child is throwing up (vomiting), it’s easy for them to become dehydrated. The risk is even greater when fever causes them to sweat more or they are also losing fluid through diarrhea. Depending on how severe or how long the vomiting lasts, your child may lose important electrolytes such as sodium, potassium and chloride.

If your child is otherwise healthy, missing a meal or two when they’re nauseous and vomiting won’t hurt them. However, it’s important to make sure they keep getting fluids to help avoid dehydration. Read on for tips to help keep your child hydrated at home when they’re sick.

What causes vomiting?

Vomiting is a common symptom with many childhood illnesses. It happens when the abdominal muscles and diaphragm contract, while the stomach relaxes. This reflex happens when the body’s “vomiting center” is triggered. This reflex is the body’s way of protecting itself against toxins, being harmfully full and other gastrointestinal, neurologic, hormonal and psychiatric triggers.


What is the best way to prevent dehydration in my child?

Oral rehydration therapy is an effective and safe method for preventing dehydration at home. For the first 24 hours or so, consider limiting solid foods and encourage them to suck or drink small amounts of fluids every few minutes over a few hours. The goal should be having them take in at least 1 ounce (30ml) per hour. Liquids help to prevent dehydration and are less likely than solid foods to trigger further vomiting.

How to give liquids

You can give your child liquid with age-appropriate bottle or cup. If your child cannot sip from a bottle or cup, try using a medicine cup, syringe or teaspoon.

What kind of fluids should I be giving my child?

6 months to 1 year:

  • undiluted breast milk or formula. If not tolerated, consider a commercial rehydration solution that contains sugars and salts. Do not use water.

1 year and older:

Note: Be careful with commercial sports drinks. They replace salts, but they can also contain large amounts of sugar, which can make diarrhea worse.

When to call your pediatrician

Call your child’s doctor right away if your child is too sick to drink, becomes lethargic, or shows any signs and symptoms of dehydration. These include:

  • urinating less frequently (for infants, fewer than 6 wet diapers daily)
  • dry tongue and inside of mouth
  • dry eyes and fewer tears when crying
  • excessive sleepiness or fussiness
  • wrinkled skin
  • in babies, a sunken “soft spot” on their head
  • in older children, weakness dizziness when trying to stand

Why are babies & young children at greater risk of dehydration?

Young children are especially prone to dehydration. This is because their bodies are less efficient at conserving water than older children and adults. In addition, their small size means that it takes less fluid loss to lead to dehydration.

Talk with your pediatrician any time you are concerned about your child’s health.

More information

About Dr. Horn

Meghan Horn, MD, MSc, FAAP is a clinical fellow at New York Presbyterian – Weill Cornell Medicine in the department of Pediatric Gastroenterology, Hepatology, and Nutrition. Within the American Academy of Pediatrics, she is a member of the subcommittee on patient and parent education.

About Dr. Waasdorp Hurtado

Christine Waasdorp Hurtado, MD, MSCS, FAAP is a Pediatric Gastroenterologist at Children’s Hospital Colorado in Colorado Springs. She is a member of the American Academy of Pediatrics and the North American Society of Pediatric Gastroenterology and Nutrition.

Last Updated
American Academy of Pediatrics Section on Gastroenterology, Hepatology & Nutrition (Copyright © 2023)
The information contained on this Web site should not be used as a substitute for the medical care and advice of your pediatrician. There may be variations in treatment that your pediatrician may recommend based on individual facts and circumstances.


Original Article – https://www.healthychildren.org/English/health-issues/conditions/abdominal/Pages/Drinks-to-Prevent-Dehydration-in-a-Vomiting-Child.aspx


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