The Dr. Hyman Show

Normal Blood Sugar But Still Insulin Resistant? Here's Why

47 snips
Oct 26, 2026
Normal blood sugar can hide serious metabolic dysfunction. Explore the overlooked role of fasting insulin, what A1C really reveals, and why even lean, healthy-looking people may face hidden risk. The conversation also covers meal timing and food order, sleep, stress, continuous glucose monitors, and practical habits for improving insulin sensitivity.
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INSIGHT

Insulin Rises Before Blood Sugar

  • Fasting insulin can reveal metabolic dysfunction before fasting glucose changes, making it an earlier warning signal.
  • Mark Hyman describes an ideal fasting insulin as under five, although conventional ranges may consider much higher values normal.
ANECDOTE

The Woman Whose Insulin Hit 300

  • One woman maintained normal glucose during a glucose tolerance test despite severe obesity and metabolic risk factors.
  • Her insulin reached roughly 300, showing how hard the pancreas can work before glucose finally becomes abnormal.
INSIGHT

A Normal A1C Is Not A Clean Bill Of Health

  • A1C estimates average blood sugar over roughly two to three months by measuring sugar-modified hemoglobin.
  • A normal A1C still cannot rule out insulin resistance if the pancreas is using high insulin to maintain glucose.
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