Diet refers to the types and quantities of food and drink that a person consumes regularly as part of their everyday life.
Nutrition: Nutrition is the study of how food affects our health and well-being.
Calories: Calories are units of energy that come from the food we eat. They provide fuel for our bodies to function properly.
Macronutrients: Macronutrients are nutrients that our bodies need in large amounts, including carbohydrates, proteins, and fats.