A blank log for recording glucose with the date, time, testing context, and notes about meals, activity, medicines, and symptoms. This page does not store your glucose values on the server. Use the print/PDF button to save a blank copy for paper or PDF use.
Why record more than the glucose number?
Glucose can change with food, physical activity, medicines, stress, illness, and other factors. The same number may mean something different depending on whether it was checked fasting, before a meal, after a meal, at bedtime, or around exercise.
CDC and NIDDK recommend keeping a record of glucose checks with the date and time, results, and other useful context such as food, physical activity, medicines, and symptoms.
Blood glucose log
| Date and time | Glucose | Unit | Testing context | Meal, activity, medicine, symptoms / notes |
|---|---|---|---|---|
For testing context, you might write fasting / before meal / after meal / bedtime / before or after exercise / symptoms. Keep the unit shown by your meter or report—mg/dL or mmol/L—with the number.
Useful context to record
- Meals: unusual meals, snacks, or timing.
- Activity: type, duration, or intensity that differed from usual.
- Medicines: timing of insulin or glucose-lowering medicines and any recent changes.
- Symptoms: shaking, sweating, dizziness, palpitations, unusual thirst, frequent urination, or other symptoms.
- Other factors: fever, infection, poor sleep, or unusual stress.
What if I use a CGM?
A CGM records many glucose values automatically, but notes about meals, activity, medicines, and symptoms can still help explain patterns. CGM readings and finger-stick blood glucose are not identical measurements, so follow device instructions and your care plan when they differ.
If a glucose value is low or high
This log does not set a personal treatment target or tell you how to adjust insulin or other medicines. Follow your individual care plan and discuss repeated values outside your target range or concerning symptoms with your health care team.
Severe confusion, seizure, loss of consciousness, or other severe low-glucose symptoms require urgent help. Very high glucose with serious symptoms such as vomiting, abdominal pain, abnormal breathing, or altered consciousness also needs prompt medical assessment.
Questions for your visit
Do I have a repeating pattern at a certain time of day? _________________________
Do meals, activity, or medicines appear related to the changes? __________________
Should I change when or how often I check? __________________________________
What should I watch next based on this record? _______________________________
Related tools
HbA1c ↔ eAG calculator · Health records and visit preparation · Medication and supplement list · HOMA-IR calculator
Official references
Editorial check: 27 September 2026. General health information and a blank self-record form; not a diagnosis, treatment target, or medication-adjustment instruction. No independent clinician review has been performed.