Is tap water calorie free? Unpacking the science of pure hydration
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3 min read
Plain water is a simple molecule, H₂O, which lacks the energy-providing macronutrients—carbohydrates, proteins, and fats—that the human body can metabolize for energy. This fundamental chemical fact is the definitive reason why plain tap water is calorie free, offering a straightforward and reassuring answer to a common dietary question.
