Measuring glucose and ketones
Wow. My body seems to be quickly bouncing back. On the second morning after my disneyland chocolate fudge sugar rush, my fasting morning ketones are already at 0.6, up from 0.2, and fasting blood glucose has dropped from 101 to 85. And in the last three days, I've dropped 3 pounds from 151.2 Saturday morning to 148.2 pounds today (Tuesday)! woohoo!! It's not dropped fat though yet - it is weight dropped from my water and glycogen storage as I get back into a state of keto-adapted.
Value ranges over the last 3 days:
fasting glucose: 101 -> 85
At first, when my incoming glucose levels are going down because I'm eating less carbs, there is still some glucose available from what was stored away in the liver. My brain will run off of both ketones and that stored glucose. My muscles will run off of the ketones and leave the glucose for the brain. That's the early stage of ketosis I'm in today.
When measurements of ketones are higher and the blood glucose is lower, it shows that the glucose storage has been largely used up and the liver is cranking up the ketone production to meet the brain's daily requirements of fuel. At this point, without enough glucose available for the brain to run on, either from incoming carbs or from what was stored, the brain greedily grabs the the ketones for itself. The muscles will now turn to circulating fatty acids for fuel. Fat- burning! (fatty acid catabolism)
I measure my fasting blood glucose along with my ketones levels so I can see when this shift into full keto-adaption happens. For me it occurs when my fasting blood glucose is in the low 70s and my ketone B-OHB levels are around 1.8.