Water doesn’t have any calories because it is a calorie-free substance. Calories are a measure of energy, and they come from the macronutrients in our food: carbohydrates, proteins, and fats. These macronutrients are broken down during digestion to release energy, which is measured in calories. Water, however, is not a macronutrient. It doesn’t contain carbohydrates, proteins, or fats, so it doesn’t provide any energy. Instead, water is essential for various bodily functions, such as regulating temperature, transporting nutrients, and removing waste. Since it doesn’t contribute to energy intake, it doesn’t have any calories.
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