Those that are needed in large amounts are called macronutrients. There are three macronutrients required by humans: carbohydrates (sugar), lipids (fats), and proteins. Each of these macronutrients provides energy in the form of calories.
Macronutrients that provide energy
There are four principal classes of macronutrients: carbohydrate, protein, lipids and alcohol.
There are four principal classes of macronutrients: carbohydrate, protein, lipids and alcohol.
However...
There are three macronutrients required by humans: carbohydrates (sugar), lipids (fats), and proteins. Each of these macronutrients provides energy in the form of calories. For example: In carbohydrates, there are 4 calories per gram.
