What role do macronutrients play in muscle building?
Macronutrients—proteins, carbohydrates, and fats—are vital for muscle building. Proteins provide the building blocks for muscle repair and growth, carbohydrates supply energy for workouts, and fats are essential for hormone production. A balanced intake of these macronutrients tailored to individual needs is crucial for optimal muscle gain.
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This is one answer. The complete system — the psychology, the biology, and the method — is in the book.
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