https://www.reddit.com/r/Rapamycin/s/AahcNm0QLS

Itā€™s tricky to get an accurate fasting glucose reading in a lab. It changes every minute. I wear a monitor and it would show 70 mg/dl at 6 am, then 80 when I get up at 7:30 am, at the time when I reach the lab by 9 am, itā€™s already 100+. My point is that without a monitor itā€™s almost impossible to know your accurate fasting reading.

Thatā€™s an interesting point. I have not myself worn a CGM when fasting. Obviously glucose will vary, but not as much as when not fasting (or I would assume so). I have in fact implanted a CGM this morning to monitor the effects of an intervention I am planning for Saturday. It would be quite a good idea to track glucose with a CGM when fasting to get an idea of the variations.

BP also varies a lot from minute to minute. Have you tried tracking it every minute for a while to see what happens?

FWIW, my blood glucose varies more from dawn effect, exercise, etc than food. Itā€™s easier to pinpoint when (and often what kind) of exercise Iā€™m doing in my CGM graph than it is to see where the meals occurred.