5 Feeding, Digestion, and Adaptation · 5.3 Electrolyte and Water Boundary
5.3 Electrolyte and Water Boundary
Human Fat-Based Metabolism
This page is structured as definition, control variables, causal chain, observable outputs, and boundary, and serves as a canonical definition node in Human FBM.
After lowering exogenous carbohydrate input, glycogen reserves and water-binding state change, and fluid distribution shifts.
Water status is coupled to sodium, potassium, and magnesium scheduling and cannot be explained outside energy architecture and adaptation phase.
Magnitude of carbohydrate reduction determines strength of glycogen-linked water-binding change.
Sodium, potassium, and magnesium background intake plus sweat loss influence fluid balance.
Total energy and training load determine electrolyte demand and depletion intensity.
Adaptation phase determines whether short-term thirst, urination, or fatigue outputs appear.
Input-structure change first alters glycogen and fluid distribution, then influences electrolyte-related outputs.
Increasing water alone without correcting energy and electrolyte architecture may leave volatility unresolved.
Adaptation may include short-term thirst, urination-frequency change, mild fatigue, or head discomfort.
If these outputs decline after structural correction, scheduling and electrolyte state are more likely synchronizing.
Water issues cannot be explained by “drink more water” alone; energy architecture and electrolyte variables must be judged together.
Persistent low energy or severe electrolyte insufficiency should not be folded into fatty-acid adaptation by default.