Ciao Mark,
The process is called gluconeogenesis. This is when the liver gets stored fats and converts them into glucose and ketone bodies. The body must have a certain level of glucose to maintain proper function. It is not that unusual to have a higher level in the morning compared to the night before when fasting. You are not doing a lot of physical activity while you sleep so consumption of glucose will be low. This has on occasions happened to me but my BG levels are a lot lower. I looked at my BG for my fast day for the last six weeks. Before this I did not monitor BG at 24 hour and 36 hours. The first number is BG at 24 hours and the second number is BG at 36 hours in the morning. Sometimes it is higher in the morning.
4.2 4.7
4.4 4.1
4.0 5.1
4.7 4.8
4.9 4.8
4.3 5.4
It is interesting that my ketone levels are always higher at 24 hour and then always lower at 36 hours in the morning. ALWAYS.
I know that the liver will top up with glycogen (stored form of glucose) from the stored fats during the night. It is like putting benzina into your car. Perhaps there is some spillage once the liver has been filled and this is entering the blood? This is a guess on my part. I have now been doing this fasting for 9 months. Give it time and as long as the overall trend is going in the right direction then you have no problems.
11:14 am
14 Jun 16