In this chapter we will explore the scientific basis for each of the three strategies and show the unique way they work together to maximize your weight loss. Your body needs a certain amount of energy to function - to power your heart, lungs, brain, kidneys, and other organs and keep them in good repair. The amount of energy you use when you are completely at rest is called your basal metabolism. Each person has his own BMR determined partly by heredity and partly by lifestyle. Physical activity is not fixed within a range like your basal metabolic rate.
Total Energy Needs.
Your total energy needs are the sum of your basal metabolism plus the amount of physical activity you do. The amount of energy supplied by each of these nutrients is measured in calories. What is true is that the body handles carbohydrates, fats, and proteins differently and the calories from each have a totally different effect on weight gain. Each of the Choose to Lose strategies takes advantage of the different ways the body uses these nutrients to help you lose weight. Fat is the villain.