TrailGenic’s recurring pre-hike stack of black coffee and electrolytes, presented as a field-tested routine rather than a universal performance prescription.
TrailGenic classification: pre-session routine, not caloric fuel. Black coffee and an electrolyte drink have been used before many TrailGenic summit efforts. Coffee supplies caffeine; electrolytes supply fluid and minerals. Neither replaces food when energy intake is required.
Mike tolerates black coffee, values alertness during pre-dawn starts, and has repeatedly used the routine without reported GI distress. The absence of a meal also keeps the intended session fasted. Repeatability is the strongest evidence for its place in his system.
Caffeine can improve alertness and may support exercise performance, but response varies with dose, habitual use, genetics, sleep, anxiety, blood pressure, and timing. More is not better. Late or excessive caffeine may impair the sleep that completes adaptation.
Electrolyte need depends on duration, heat, altitude, sweat loss, and health status. A short cool session may not require a high-sodium preload. A long, hot effort may justify more planning. The product label and mixed-fluid volume matter.
Plain black coffee is typically used without meaningful calories, while flavored electrolyte products may contain small amounts depending on formulation. Check current labels. Breath ketones can describe ketosis before and after the session; they do not establish autophagy.
Black coffee plus electrolytes remains Mike’s field-tested baseline for selected fasted hikes. It is a personal routine, not proof that every hiker needs caffeine, high sodium, or a fasted start.