What is the 40/30/30 Rule
Nutrients that provide calories for energy are known as macronutrients. These nutrients are needed for growth, metabolism and other essential body functions. As the word “macro” means “large”, macronutrients are nutrients that are needed in large quantities for optimal health. These macronutrients are:
Carbohydrates – which provide 4 calories per gram.
Proteins – which provide 4 calories per gram.
Fats – which provide 9 calories per gram.
These three things are all necessary for survival. … Read the rest