1 What Human FBM Is · 1.2 Not Ketogenic Diet
1.2 Not Ketogenic Diet
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.
Human FBM is not defined by ketogenic-diet identity.
Its central variables are insulin occupancy and fatty-acid direct energy dominance over time.
Ketones may appear, but ketone level is not a primary validity variable.
Exogenous carbohydrate input and insulin occupancy determine substrate scheduling direction.
Energy sufficiency and lean-mass stability determine whether the structure is sustainable.
A ketone-centered reading can miss energy sufficiency and lean-mass constraints.
Only low occupancy plus sufficient energy allows fatty-acid direct energy to remain dominant long term.
Ketone fluctuation can align with stability, but it can also diverge from structural stability.
More reliable outputs are hunger variability, post-meal state, energy continuity, and body-fat allocation rhythm.
High ketone level does not automatically indicate a better metabolic structure.
This page supports structural interpretation, not ketone-target rules.