Sunday, October 11, 2020

October Blood Glucose Stats & Upcoming Experiments

I'm about a week late on this, but here's an update on my monthly blood glucose stats. As before, I'll be looking at average blood glucose, coefficient of variation, and time in range

Here's the data broken out by month:

Figure 1.
 Average blood glucose (blue) & coefficient of variation (orange) by month.

Figure 2. Time-in-range vs. month.

Figure 3. Time-in-range vs. month, excluding "in-range."

No improvement vs. August. However, I had two bad sensors in September, which resulted in periodic large mismatches between my CGM and fingerstick meter. I don't have the data to quantify the impact, but I suspect that that was responsible for a substantial fraction of the Low and High time. A quick look at the first 1.5 weeks in October shows that I'm on trend for a meaningful drop in Low (currently 3%) with no change in average glucose (still 90 mg/dL). We'll see if it holds up.

Planned Experiments:

  • Baseline:
    • Glucose re-test
    • Fasting re-test
  • Low-carb foods:
    • Carbquick
    • Eggs
  • Supplements:
    • Vinegar
    • MSG: Preliminary tests here. I tried again, but this time while taking insulin, and saw no effect. I'm going to repeat the original test and then other variations to try to figure out what's going on.

As always, if you have any comments, suggestions, ideas for new experiments, or want to participate, please let me know in the comments or send a PM via the contact form or to

- QD

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