If you undergo ketosis your fat cells will be lysed. Anecdotal reports aside, physiologically that must happen unless you are incapable of it (a genetic mutation which would—speculatively—have far-ranging effects).
Why must that happen? Ketosis means that lipolysis is occuring. Lipolysis does not inherently require that fat cells must be lysed as a physiological inevitability. ie. The fat that is to be broken down can itself come from diet instead of the lysing of fat cells.
You’re right—I wasn’t expressing myself thoroughly. I had the latent assumption of a caloric deficit, which as Eliezer has stated might not be enough to trigger breakdown of fat cells in some people. If the default fasted state of those people does not effect adequate catabolisation of their fat stores, then perhaps altering their body’s typical means of energy production would trigger lipolysis not just of humoural triglycerides but adipose cells as well when in a fasted state—exempli gratia through a caloric deficit, intermittent fasting, etcetera.
Why must that happen? Ketosis means that lipolysis is occuring. Lipolysis does not inherently require that fat cells must be lysed as a physiological inevitability. ie. The fat that is to be broken down can itself come from diet instead of the lysing of fat cells.
You’re right—I wasn’t expressing myself thoroughly. I had the latent assumption of a caloric deficit, which as Eliezer has stated might not be enough to trigger breakdown of fat cells in some people. If the default fasted state of those people does not effect adequate catabolisation of their fat stores, then perhaps altering their body’s typical means of energy production would trigger lipolysis not just of humoural triglycerides but adipose cells as well when in a fasted state—exempli gratia through a caloric deficit, intermittent fasting, etcetera.