Calories are not classified under macronutrients.
Calorie is known as the unit of energy. Calorie is the energy which is gained after the consumption of food materials.
The energy which is gained from the intake of calories provides energy to people for performing daily activities.
Carbohydrates are molecules of sugar and are classified as macronutrients . Carbohydrates are broken down into glucose in the body which acts as the main source of energy for the body.
Fats are also classified as macronutrients, they are present in common food products like milk,butter etc.
Water is also a macronutrient as it plays a role in all hydrolytic reactions. It takes part in the hydrolysis of other macronutrients.
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