Why is your glucose dropping to 70 at 3 AM while daytime levels are okay?
A glucose level of 70 at 3 AM suggests your long-acting insulin may be peaking during the night, causing your blood sugar to drop too low while you sleep. Since you're taking 10 units at 11 AM, the insulin is most active during nighttime hours when Show Full Answer
Why is your glucose dropping to 70 at 3 AM while daytime levels are okay?
A glucose level of 70 at 3 AM suggests your long-acting insulin may be peaking during the night, causing your blood sugar to drop too low while you sleep. Since you're taking 10 units at 11 AM, the insulin is most active during nighttime hours when you're not eating.
This nighttime low can sometimes trigger your body to release hormones that raise blood sugar too much by morning - though your main concern right now is preventing those 3 AM lows.
Here are some options to discuss with your doctor:
- Adjust your insulin timing: Taking your dose later in the day or splitting it into two smaller doses might help
- Lower your dose: 10 units may be slightly too much for your needs
- Change when you take it: Moving your injection time could prevent the nighttime dip
- Try an ultra-long-acting insulin: Some formulas work more evenly throughout the day
Watch for signs of nighttime low blood sugar like nightmares, night sweats, or restless sleep. A continuous glucose monitor (CGM) could help track what's happening while you sleep.
Don't adjust your insulin on your own - work with your healthcare provider to find the right dose and timing that keeps you stable both day and night.
January 9
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