How Many Calories Do You Burn Throwing Up?


When we feel sick and throw up, it’s natural to wonder about the effects on our body, including how many calories we burn. While vomiting is uncomfortable and usually linked to illness, some might think it also burns calories. This article explores the truth about calories burned during vomiting, breaks down the process, and discusses its impacts on health.

What Happens When You Vomit?

Vomiting occurs when your stomach forcefully expels its contents. This reflex can be triggered by various causes such as illness, food poisoning, or motion sickness. When you throw up, your body engages several muscles including abdominal and diaphragm muscles.

What Happens When You Vomit?

Calories Burned During Vomiting

Throwing up is an intense activity for the body, but it does not burn a significant number of calories. The act of vomiting involves quick bursts of energy from abdominal muscles, but this lasts only a short time. The actual calorie expenditure is minimal. Most studies suggest that the act of vomiting burns roughly as many calories as walking at a moderate pace for a few minutes.

The Impact of Vomiting on Calorie Absorption

Vomiting affects how your body absorbs calories. When you vomit, not only do you lose fluids, but also nutrients and calories that have not yet been absorbed. However, frequent vomiting can lead to dehydration and nutritional deficiencies, rather than a meaningful way to burn calories.

The Impact of Vomiting on Calorie Absorption

Health Risks of Frequent Vomiting

Using vomiting as a method to lose weight is dangerous. It can lead to serious health problems including electrolyte imbalances, dehydration, and damage to the esophagus and teeth. It is important to maintain a healthy diet and seek medical help if you find yourself vomiting frequently.

Healthy Ways to Manage Weight

Instead of using unhealthy methods to lose weight, consider safe and effective options:

  • Regular Exercise: Engage in activities like walking, swimming, or cycling.
  • Balanced Diet: Eat a variety of foods to get necessary nutrients.
  • Stay Hydrated: Drink plenty of water throughout the day.


Vomiting does burn a small number of calories, but it is not a safe or effective way to lose weight. It can lead to serious health issues and should not be used as a weight management technique. If you are looking to manage your weight, focus on healthy lifestyle choices and consult with healthcare providers for guidance.

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