Does Water Have Calories? What You Should Know


I’m sure many health conscious people would want to know the answer to the question: Does water have calories? In this post, I would discuss the essential information about water that you should know. Indeed, when you drink water, are you taking in unwanted calories? If you’re on a weight loss regimen, you have to know what’s in your most precious life-giving liquid.

What is Water?

Water is a liquid matter that is made up of two molecules of hydrogen and one molecule of oxygen. That’s why it’s also called H2O. It’s colorless, odorless and tasteless at specified temperature and pressure. It can dissolve almost all powdery substances and can be mixed with them. Due to these properties, it’s considered a universal solvent. However, before we answer the question, let’s discuss first about the crucial properties of water.

1. Liquid state

The temperature has a significant role in the physical state of water. At normal temperatures, water occurs at a liquid state. At room temperature, 4 molecules of water connect to each other to form a flowing, liquid state; this is the tetrahedral arrangement. This physical state makes the movement of water smooth and fluid.

2. Solid State

Water becomes solid when the temperature drops to negative degrees Fahrenheit or Celsius. The water molecules tend to move more slowly allowing them to group in aggregates of six molecules to form hexagonal structures. This is the denser and crystalline solid form of water.

3. Gaseous State

At extremely high temperatures, the hydrogen bonds in water break, and the hydrogen atoms are unable to reconnect with oxygen, thus water turns into a gaseous state. This is steam or vapor. The breakdown causes heat generation that makes the molecules move faster before they can form further bonds.

If you have noticed, the movement caused by the temperature can affect the physical state of water. When the movement is fast, it becomes steam and when the movement is slow, it becomes ice. Also, the density of water is increased when it’s at its solid state.

Why Water is Considered a “Universal Solvent”?

Because of the presence of the hydrogen and oxygen molecules, which are positively and negatively charged, respectively, water can attract many charged particles. As you may know from basic chemistry, opposite charges attract each other. Hence, the polarity of the particles will depend on their charges. Another reason is the ability of numerous substances to form a bond with hydrogen; thereby, allowing water to dissolve them.

Does Water Have Calories?

Not anywhere in the facts above-mentioned have calories been discussed. So, the answer is: “No, pure water has no calories.” Unless you add sugar, tea, coffee or other substances that have calories, pure water will always contain zero calories.

Therefore, drink all the water that you can take in because adequate hydration is healthy for your body. You should drink at least 8 glasses of water daily for normal days. However, if you exercise and sweat profusely, you have to increase your water intake. Here are the advantages of proper hydration.

1. Cleanses the body of toxic waste products

As a universal solvent, water can help eliminate toxic waste products of metabolism from your body. These waste products are then excreted through your kidneys, in the form of urine, or through your skin, in the form of sweat. Some of them would be converted to less toxic substances by the liver cells, while a few waste products, such as carbon dioxide and similar substances are eliminated through the lungs. These are all possible because of the presence of water.

2. Nourishes the body cells

Water is needed by your body cells to be able to perform their physiological functions effectively. In fact, your body should be composed of 60% to 80% of water in different areas. In cases that dehydration occurs and goes untreated, death is imminent. That’s why people who have untreated vomiting and LBM (Loose Bowel Movement) have a high risk of fatalities.

3. Quicker transport of essential nutrients

Since water is in a liquid form, it helps blood transport essential nutrients in the various parts of the body. Without water, the blood cells would not be able to perform their physiological functions properly.


I hope you have understood more the role of water in maintaining your health. Furthermore, we have answered the question: “Does water have calories?” You can rest assured that you won’t gain those dreaded calories when you drink lots of water. On the contrary, you need lots of this universal solvent to stay healthy and fit. So, drink even when you’re not thirsty. Oh, by the way, it’s also a weight loss fact that if you drink water, you would fill full and thus, eat less. So, there you go. See you on the next post.


Hello everyone! I’m glad to have you here. I’m a medical technologist by profession. My second love is writing. So, I’m focusing on providing content to help other people with their health problems. I hope I can be of help to you.

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