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Summary
On episode 635 of 40+ Fitness, Coach Allan sits down with Dr. Georgia Ede, a psychiatrist specializing in nutritional and metabolic psychiatry who spent 12 years at Smith College and Harvard University Health Services offering students nutrition-based alternatives to psychiatric medication.
Her book, Change Your Diet, Change Your Mind, argues that restructuring your diet can be a powerful intervention for mood, anxiety, and memory, often working through the same insulin and metabolic pathways that drive conditions like type 2 diabetes.
The conversation covers why cholesterol behaves like an optional macronutrient, what metabolic flexibility means, and why fasting insulin is a far better early warning sign than the standard blood sugar tests most doctors run.
Links
- https://www.diagnosisdiet.com
Key Takeaways
- Diet can be a more powerful lever than medication for mental health. Dr. Ede points out people consume large volumes of food several times a day compared to one small pill, so restructuring the diet in biologically sound ways can meaningfully improve mood, anxiety, and memory.
- Cholesterol works like a macronutrient your body can make itself. Just as the body can produce all the glucose it needs without dietary carbohydrate, nearly every cell can synthesize cholesterol, and the brain makes 100 percent of its own supply since cholesterol cannot cross the blood-brain barrier.
- Metabolic flexibility, the ability to shift between burning glucose and ketones, matters for everyone. Staying constantly in a carbohydrate-burning, high-insulin state blocks the recycling and healing pathways that only activate during ketosis, even for people without a diagnosed illness.
- Ketogenic research for mental illness has a buried history. The diet treated epilepsy as early as 1921, a 1969 study found it improved symptoms in 10 women with schizophrenia, and a 2009 case study got a woman with decades of schizophrenia off antipsychotic medication for good, yet none of it was followed up because it did not fit mainstream dietary advice.
- Fasting insulin is a better early warning sign than blood sugar tests. Standard tests like fasting glucose and A1C only flag problems after years of damage. Elevated fasting insulin, high triglycerides, low HDL, and a waist circumference over half your height reveal insulin resistance up to 20 years before it becomes full type 2 diabetes.
- Insulin resistance can starve the brain even when blood sugar looks fine. Every brain cell needs insulin to convert glucose into usable energy. When the brain becomes insulin resistant, cells can be swimming in glucose and still be running short on fuel, and by the time memory problems show up, up to 25 percent of processing capacity may already be lost.
- Ketones can re-energize an underfueled brain within days. A ketogenic diet lowers insulin, triggers fat burning, and produces ketones that cross easily into the brain, which is why many people report reduced brain fog and improved mood and mental stamina soon after starting.
- Long-term ketosis is not required for everyone. Some people, especially those who are physically fit with more muscle mass, have enough metabolic flexibility to cycle in and out of ketosis without their symptoms returning, though many with serious conditions need to stay in it consistently.
- Dr. Ede’s three strategies to get and stay well: eat a diet that nourishes, protects, and energizes the brain by removing refined carbohydrates and seed oils, exercise regularly since working muscle clears glucose without needing an insulin spike, and spend time outdoors.
“Diet is king and exercise is queen.”
Dr. Georgia Ede
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Episode 7 – My Client Sandy Makes the Commitment
Episode Notes
Podcast: 40+ Fitness
Episode: 635
Published: 2024-03-26
Host: Allan Misner (aka Coach Allan), author of The Wellness Roadmap
Guest(s): Dr. Georgia Ede, an internationally recognized expert in nutritional and metabolic psychiatry, Change Your Diet
Listen & Subscribe: Apple Podcasts · Spotify · YouTube (audio only)