Reading your glucose graph

Updated June 22, 2026

The glucose graph plots your recent readings over time. The shaded band across the middle is your target range, so anything inside the band is in range and anything outside it is high or low.

How to read it

• The band is your own target range. Change your range and the band moves with it.
• The line and points are your readings. Their shape shows the rise and fall of your day.
• Gaps appear when readings are missing. Glynce does not draw a straight line across a long gap, because that would invent data that was never measured.

What matters most is the shape over time, not any single point. A brief spike after a meal looks very different from a long stretch above range, even if the peak number is the same.

The graph is there to help you see patterns. For any treatment decision, use your CGM's official app and the guidance of your care team.