Fasting insulin for longevity: understanding metabolism earlier
Existing knowledge article; not a hands-on product test.
Fasting insulin is often missing from standard labs. For metabolic context, it can be useful because it adds information beyond fasting glucose and HbA1c.
Important: fasting insulin is not for self-diagnosis. It should be interpreted in context.
Short answer
You may find fasting insulin in lab reports as:
- fasting insulin
- insulin fasting
It often needs to be requested specifically.
Why fasting insulin can be relevant
Fasting insulin can help show how much insulin the body produces in a fasting state. Together with fasting glucose, it may be used to calculate HOMA-IR.
It is especially useful together with:
- HbA1c
- fasting glucose
- triglycerides
- HDL-C
- waist circumference
- steps
- sleep
- blood pressure
Where can you get fasting insulin?
Typical options:
- primary care physician, if requested
- internist
- diabetologist
- endocrinologist
- self-pay lab
Ask specifically, because it is not always standard.
What can influence fasting insulin?
- fasting duration
- late meals
- poor sleep
- stress
- medication
- acute illness
- training load
- lab differences
How does LongLifeScan use it?
LongLifeScan uses fasting insulin as metabolic context:
Questions for clinician or lab
- Can fasting insulin be measured?
- Was fasting duration appropriate?
- Should HOMA-IR be calculated?
- Which markers should be interpreted together?
Related topics
Conclusion
Fasting insulin can improve metabolic context. It is most useful when connected with glucose, HbA1c, lipids, waist and daily life.