DiabetesTeam

Great question! The FreeStyle Libre 3 continuously tracks blood sugar levels and sends real-time readings to a smartphone app, so it's giving updates far more frequently than hourly — roughly every minute.

Rather than focusing on a single hourly number, here are the general target ranges to keep in mind:

- Before meals Show Full Answer

Great question! The FreeStyle Libre 3 continuously tracks blood sugar levels and sends real-time readings to a smartphone app, so it's giving updates far more frequently than hourly — roughly every minute.

Rather than focusing on a single hourly number, here are the general target ranges to keep in mind:

- Before meals: 80–130 mg/dL
- After meals (2 hours): Less than 180 mg/dL
- Overall target range: 70–180 mg/dL throughout the day A really useful metric the Libre 3 offers is Time in Range (TIR) — this shows how much of the day blood sugar stays between 70–180 mg/dL. As one DiabetesTeam member put it, TIR gives the "big picture" compared to a single reading at any one moment.

Everyone's targets can be slightly different, so it's always worth confirming personal goals with a doctor.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

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