Why does fat burn most efficiently in a state of depleted glycogen?
When glycogen stores are low, the hormonal environment shifts to favor fat mobilization. In this state, adrenaline levels rise, insulin decreases, and hormone-sensitive lipase activates, allowing fatty acids to flood the bloodstream and become the primary fuel source.
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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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