The Calorie Count of Water: Is It Really Zero?

Water is essential for life. We need it to survive and keep our bodies healthy. It’s common knowledge that water has zero calories, but is this really true? In this article, we will take a closer look at the calorie count of water and answer some common questions about this vital substance.

What Are Calories?

Before we dive into the calorie count of water, it’s important to understand what calories are. A calorie is a unit of energy. It’s the amount of energy required to raise the temperature of 1 gram of water by 1 degree Celsius. In nutrition, calories are used to measure the energy content of food and drinks.

How Are Calories Measured?

Calories are measured using a device called a bomb calorimeter. This device measures the heat energy released when a food or drink is burned. The amount of heat energy released is then converted into calories.

Does Water Have Calories?

The short answer is no, water does not have any calories.

This is because water is made up of two elements: hydrogen and oxygen. These elements do not contain any energy that our bodies can use, so there are no calories in water.

Is There Such a Thing as Negative Calories?

Negative calorie foods are those that require more energy to digest than they provide. The idea behind negative calorie foods is that you can eat as much as you want without gaining weight because the body will burn more calories digesting the food than it takes in. However, there is no scientific evidence to support the idea of negative calorie foods.

Does Drinking Cold Water Burn More Calories?

It is often claimed that drinking cold water can help you burn more calories because your body has to work harder to warm the water up to body temperature. While it is true that your body uses energy to warm up the water, the amount of energy used is very small and is unlikely to have any significant impact on weight loss.

Does Drinking Water Help You Lose Weight?

Drinking water can help you lose weight by reducing your appetite and increasing your metabolism. Studies have shown that drinking water before meals can reduce the number of calories you consume, leading to weight loss over time. Drinking water also helps your body burn calories by increasing your metabolism.

How Much Water Should You Drink?

The amount of water you should drink depends on a variety of factors, including your age, weight, and activity level. As a general rule, you should aim to drink at least 8 glasses of water per day. However, you may need to drink more if you are very active or live in a hot climate.

Can You Drink Too Much Water?

Yes, it is possible to drink too much water. This condition is called hyponatremia and occurs when the level of sodium in your blood becomes too diluted. Symptoms of hyponatremia include nausea, headache, confusion, and seizures. To avoid hyponatremia, it’s important to drink water in moderation and to listen to your body’s thirst signals.


Water is a vital substance that our bodies need to survive and thrive. While it is true that water has zero calories, it is important to remember that other beverages, such as soda and juice, can contain a significant amount of calories. By drinking water instead of sugary drinks, you can help reduce your calorie intake and improve your overall health.


  1. Does water contain any nutrients? A: While water does not contain any nutrients, it is essential for many of the body’s processes.
  2. Can drinking water help with constipation? A: Yes, drinking water can help soften stools and make them easier to pass.

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