Is Bipolar Disorder Really a Diet Problem w/ Dr. Iain Campbell
Mark Hyman
30 jul 2025
Mindsip insights from this episode:
Understand seasonal mood variations as evolutionary responses
The seasonal variation in bipolar symptoms may be a dysregulation of ancient survival mechanisms for energy allocation, similar to hibernation or migratory restlessness seen in animals.
Monitor insulin resistance to predict psychiatric illness risk
Large data studies show that insulin resistance in early life is a predictive marker for the future onset and severity of psychiatric conditions.
Implement ketogenic diet to calm the brain in bipolar patients
A pilot study using functional MRI showed that a ketogenic diet significantly reduced brain glutamate, an excitatory neurotransmitter, in bipolar patients, suggesting a calming effect on the brain.
Recognize bipolar depression as a state of profound exhaustion
The experience of bipolar depression is not just sadness, but a physiological crisis of suppressed energy that feels like being indefinitely paused in a state of complete exhaustion after running a marathon.
Experience mental clarity and stability with a ketogenic diet for bipolar disorder
For some with bipolar disorder, a ketogenic diet can feel like the lights in the brain are clicking back on, providing mental clarity and emotional stability for the first time.
Address energy metabolism to resolve mental illness issues
Viewing mental illness as a neurotransmitter imbalance is like adjusting the air conditioning when the car's engine is on fire; the root cause is a fundamental disruption in energy metabolism.
Target insulin signaling pathways with lithium for metabolic health
Lithium, a primary medication for bipolar disorder, may work by targeting the body's insulin signaling network, suggesting the drug is bluntly addressing an underlying metabolic problem.
Redefine mental illness diagnosis to uncover biological roots
The current diagnostic system for mental illness is like using the wrong map for the territory because it only describes symptoms without identifying the underlying biological root causes.
Identify elevated brain lactate as a marker for mitochondrial dysfunction
Elevated lactate, a marker of mitochondrial dysfunction and the same substance that causes muscle soreness, has been observed in the brains of psychiatric patients for decades.
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