physiological insulin resistance - yes. not pathological. in other words your body will work overtime to spare glucose for your brain, and your tissue will become necessarily more insulin resistant.
by the way, there's absolutely no need to eat that low a level of carbohydrate, consistently. do what makes you feel best, but i suspect that walking around in permanent ketosis, absent a pressing reason, will get old.
"dean ornish and dr. davis think the palmitic acid our bodies use for fuel while we sleep is poison if we eat it. zero-carbers like charles washington think the oldest fuel in our evolutionary history – glucose - used by organisms a billion years ago and without which the brains of modern mammals cannot survive for more than a few minutes – is an unnatural toxin if you eat it. both views ignore basic facts of medical physiology and defy evolutionary history." - kurt harris