02/01/2026
Insulin is a vital metabolic and growth-regulating hormone, it is produced by the beta cells of the pancreas and is released into the bloodstream primarily in response to rising blood glucose after eating, but when insulin is chronically elevated due to insulin resistance, it can contribute to systemic disease.
Despite strong evidence linking hyperinsulinaemia to chronic disease and cancer biology, fasting insulin measurement is not routinely incorporated into standard blood panels.
Yet, fasting insulin is one of the most useful markers for assessing early metabolic dysfunction, even when glucose remains within the normal range.
➡️Laboratory reference range: typically ~2–25 mIU/L (or µIU/mL)
→ This reflects population averages, not metabolic optimality.
➡️Metabolically optimal fasting insulin:
~2–6 mIU/L (µIU/mL)
Often considered ideal for metabolic health and
improved insulin sensitivity and lower inflammatory burden.
➡️Do you need strategies to improve insulin sensitivity?
➡️Do you require in-depth blood analysis with a qualified practitioner?
➡️Do you seek support in the prevention or reversal of metabolic dysfunction?
➡️Or would you like to consult a Nutritional oncology provider?
If so, why not book a free discovery call or consult now!