How Many Calories Do You Lose When You Throw Up?

how many calories do you lose when you throw up

If vomiting has crossed your mind as an option to reduce the calories consumed, read on. This blog post will examine why and how certain medical conditions might make it hard to vomit after overeating and explore what happens to your calorie count when throwing up. However, here’s a fun fact: how many calories do you lose when you throw up? Well, studies indicate that vomiting after consumption cannot purge all the calories consumed, even if it’s done right after eating. Typically, vomiting eliminates only up to 50% of the calories consumed. This implies that, in reality, the body absorbs between 50% to 66% of the calories consumed.

Have you ever been in an unpleasant situation where you’ve eaten more food than your body could handle? We’ve all been there – counting the calories, attempting to estimate how much bad stuff we just put into our bodies.

Have you ever considered that throwing up could help alleviate that feeling of being uncomfortably full – and potentially save some calories too?

Why people might vomit after overeating

Are you unable to control your food urges yet still want to stay in shape? In that case, there’s a chance the thought of how many calories do you lose when you throw up has crossed your mind.

Overeating is a common problem associated with digestive issues and even mental health conditions. When individuals consume excessive calories, their stomachs may become stretched beyond capacity, and the body responds by inducing vomiting to expel the extra food.

Unfortunately, when people vomit after overeating, they are not losing many calories, as studies have concluded that it amounts to only around 50-100 calories per episode. Though vomiting may help ease some discomfort in the short term, it is not necessarily beneficial to overall health.

Wondering how many calories do you lose when you throw up?

Throwing up is an unpleasant physical experience, but how does it affect the body? When someone vomits, it causes them to lose a significant amount of fluids, salts, minerals, and calories.

The number of calories you lose when you vomit can vary greatly depending on how much food was in your stomach then. However, if you throw up a full meal, you are likely expending less than half of your consumed calories.

Besides losing calories, vomiting can cause dehydration and electrolyte imbalances in the body which can make one feel exhausted or weak and may require medical attention.

Regularly throwing up is unhealthy physically and mentally, as it can become a form of disordered eating when done excessively.

What does the research say?

For those who want an answer to how many calories do you lose when you throw up, recent research shows that, on average, if you vomit immediately after eating a lot, you eliminate fewer than half of the calories you consumed. By using laxatives, you can eliminate 10 percent of your calories. That’s because your body absorbs calories as soon as you consume food. 

Nonetheless, this number may vary depending on how much one consumes and how quickly one purges.

Advice for those who might struggle with vomiting after eating too much

Individuals struggling with vomiting after consuming too much food should focus on portion control instead of eating large quantities to lose the extra calories. Eating smaller portions throughout the day helps keep the overall calorie intake at a balanced level without having to resort to purging.

Additionally, addressing any underlying psychological or physiological motivations for overly unhealthy eating patterns with a professional, if necessary, can help restore balance and prevent further episodes of extreme overeating.

Advice for those who experience frequent vomiting after eating

Suppose an individual is experiencing frequent vomiting due to excessive eating. In that case, it’s important to consult with a doctor immediately, as purging can cause severe dehydration and electrolyte imbalances in the body. The doctor can provide more specific advice on how to combat this issue.

By taking these steps, individuals dealing with frequent vomiting episodes after overeating can regain control of their health and ensure they are consuming the right calories for optimal well-being.

What does it mean if you purposely throw up food after eating?

Intentionally vomiting after eating is a dangerous physical and mental health condition known as bulimia nervosa. A person affected by this disorder will consume large amounts of food in short periods and force themselves to vomit minutes later.

Effects of Bulimia on Health

Bulimia can have severe consequences for an individual’s physical and mental health. It’s an eating disorder characterized by regular episodes of bingeing and purging with the intent of losing weight. However, on the contrary, this cycle causes such individuals to gain weight with time.

Common purging techniques include self-induced vomiting, laxative abuse, diuretic abuse, and fasting.

People may lose more than just the calories they would have otherwise consumed when engaging in these activities. In addition to ingesting fewer nutrients than needed, individuals can also suffer from electrolyte imbalances due to loss of fluid and the primary electrolytes sodium and potassium.

It can negatively impact how our hearts function, leading to possible cardiac complications over time.

What to do if you have bulimia?

Bulimia isn’t just about how many calories are lost; it also involves an overall distorted body image or negative thoughts about oneself.

It’s important to seek help if you or someone you know believes they may be suffering from an eating disorder and has developed this behavior. That’s because bulimia can have serious long-term health consequences ranging from electrolyte imbalances to digestive problems and tooth decay.


Vomiting can be a serious health problem if done excessively or too frequently. For those wondering how many calories do you lose when you throw up, it is important to understand the potential risks and consequences of purging.

Taking steps to address any underlying issues related to disordered eating, as well as focusing on portion control and getting medical assistance if necessary, are all important aspects of managing this issue. Properly addressing vomiting after overeating can help ensure optimal well-being for those struggling with this issue.


How many calories do you lose when you throw up?

The number of calories lost when vomiting can vary significantly, but it is estimated that less than 50% of calories can be lost per episode.

Is vomiting after overeating unhealthy?

Yes, frequent episodes of vomiting after overeating can lead to severe dehydration and electrolyte imbalances in the body, as well as psychological issues like disordered eating if done excessively. It’s crucial to consult a doctor if this issue persists.

What should one do if one struggles with vomiting after overeating?

When experiencing vomiting after overeating food, individuals should focus on portion control and address any underlying psychological or physiological motivations behind their unhealthy eating habits. Additionally, seeking medical advice from a doctor can help determine the best action to manage this issue.

Can vomiting help with weight loss?

No, vomiting cannot be used as a method for weight loss. While it may provide some relief in the short term, it can lead to serious medical problems if done excessively. Focusing on portion control and exercise as healthier methods for losing weight is more viable.


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