3 Why Humans Can Use FBM · 3.4 Why Protein Cannot Be Primary Energy
3.4 Why Protein Cannot Be Primary Energy
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.
Protein primarily serves structural, transport, enzyme, repair, and immune functions.
Human FBM does not use long-term protein-dominant direct energy as its target state.
Protein sufficiency determines tissue maintenance and repair capacity.
Nitrogen-processing pressure indicates burden from excessive protein-energy allocation.
Fatty-acid contribution determines whether protein is forced into energy duty.
When fatty-acid contribution is insufficient, protein is more likely to absorb extra energy burden.
Sustained protein-energy burden raises nitrogen-processing pressure and can reduce structural efficiency.
Higher protein-energy burden can coincide with weaker recovery quality and body-composition instability.
With stable fatty-acid dominance, protein function aligns more with structural maintenance duty.
Protein sufficiency is necessary, but protein-dominant energy is not a target condition.
This page allocates substrate roles and does not minimize protein importance.