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Glucose
Help Center   •   Data Sources

Glucose

A Glucose item is a reading from a meter, or the readings a continuous glucose monitor (CGM) took over a stretch of time. A reading can say when it was taken, such as before breakfast or after a meal, and a laboratory A1C result is a Glucose item too.

Where your readings come from

These services can send your Glucose data to FitnessSyncer:

FitnessSyncer can send your Glucose data to:

You can also type a reading in yourself in the FitnessSyncer Notebook, with the time of day it was taken, or ask your AI assistant to record it for you.

How do I sync A1C data?

A1C data is part of our Glucose source, so an A1C your service records comes in with your other glucose readings.

Your glucose range

Your glucose range is set in the Glucose Preferences on your Preferences page. It starts at 70 to 140 mg/dL, and you can set the range you work to with your clinician. It is used for:

  • the shading on your glucose charts and in your e-mails
  • your time in range
  • the summary FitnessSyncer Print puts above your readings for a visit

Charts and tiles are normally shaded against the standard clinical thresholds. If you already know your readings run outside them, turn on Use my glucose range instead of the standard ranges and they are shaded against your own range instead, so a reading that is expected for you stops showing as a problem every day.

Time in range

Time in range is the share of your readings that fall inside your glucose range. With a CGM, every value it recorded counts, so it is close to the share of the day you spent in range. The Diabetes and Glucose Report shows your time in, above and below range, along with your glucose by time of day.

Estimated A1C

The Diabetes and Glucose Report estimates your A1C from your average glucose over the last 90 days, using the same relationship a laboratory uses for the estimated average glucose printed beside an A1C. It is an estimate from your readings, not a laboratory result, and it always uses the standard thresholds of 5.7% and 6.5%, whatever you set for your own range.

Meals and workouts

When you record what you eat in Nutrition, the Diabetes and Glucose Report charts your glucose against your carbohydrates and glycemic load. With a CGM running, a meal you have eaten at least three times shows your glucose after each of them on one chart, and a kind of workout you do often shows your glucose after each session; see Compared with your other entries.

Alerts and widgets

An alert can e-mail you when your glucose goes higher than you want, and the FitnessSyncer Widgets put your latest reading on your phone’s home screen. You can also set a goal for your glucose.

Comparing readings

FitnessSyncer Compare puts two readings in context: where each sits in your own last 90 days, whether the difference is larger than your glucose normally varies, the readings either side of each one, and the food and exercise around them.

Asking your AI assistant

With the FitnessSyncer MCP Server, an AI assistant can tell you your average glucose, time in range and estimated A1C for any period, compare one period with another, find the times of day you tend to run high or low, show you what your usual breakfast does to your glucose, and record a reading for you. See the sample prompts for ideas.

FitnessSyncer shows your readings and the ranges you set; it does not interpret them. Nothing here is medical advice.

See Also

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