
LEVELS – A Whole New Level #253 - What is insulin resistance and why does it matter? | Dr. Rob Lustig & Dr. Dominic D’Agostino - (Replay)
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May 9, 2024 Dr. Rob Lustig and Dr. Dominic D’Agostino discuss insulin resistance, its impact on chronic diseases, the importance of monitoring insulin levels, and the role of insulin in weight management. They challenge traditional calorie theories, emphasize the need to manage insulin levels, and explore the effects of amino acids on metabolism.
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Insulin Is An Energy Storage Signal
- Insulin is the body's energy-storage hormone and works differently across tissues.
- Insulin resistance arises when receptors and downstream signaling are downregulated, requiring more insulin to achieve the same effect.
Insulin Resistance Is Tissue Specific
- Insulin resistance is region-specific and produces different diseases depending on the tissue affected.
- Type 2 diabetes reflects liver insulin resistance while PCOS and Alzheimer's reflect ovarian and brain resistance respectively.
Liver Fat Trumps Muscle Fat For Risk
- Liver fat predicts insulin resistance more strongly than muscle fat when measured accurately.
- Advancements in MRI revealed liver fat as a dominant driver of metabolic dysfunction.

