Final answer:
The percentage breakdown for each macronutrient of the diet for an inactive individual is 40% carbs, 30% fat, and 30% protein.
Step-by-step explanation:
The percentage breakdown for each macronutrient of the diet for an inactive individual is (a) 40% carbs, 30% fat, and 30% protein.
It is advisable to obtain 50–70% of the total calories from carbohydrates, 20–30% from fat, and 10-15% from protein. Carbohydrates are the main energy-yielding substances, while fats provide energy and act as insulating materials.
A balanced diet should also include proteins, fats, carbohydrates, calcium, phosphorus, iron, vitamin A, vitamin B1, vitamin C, and 2-3 liters of water.