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Fasting Window Integrity

Meaning

Fasting Window Integrity refers to the strict and consistent maintenance of a period of zero caloric intake, typically lasting twelve or more hours, within a time-restricted feeding protocol. Maintaining this integrity is crucial because the fasting state initiates key metabolic switches, including the transition from glucose oxidation to fat oxidation and the activation of cellular repair pathways. Breaching this window with even minimal calories compromises the intended physiological effects.