The Diary of a CEODr. Andrew Koutnik on glucose control and chronic disease
How glucose spikes drive disease risk well before obesity arrives; Koutnik on HbA1c as the strongest predictor, and the case for ketogenic eating in diabetes.
CHAPTERS
- 3:20 – 8:40
Metabolism, Mission, And A Broken Medical System
Kutnick introduces his background as a metabolic researcher and patient living with both reversible and irreversible chronic diseases. He explains that his mission is to translate complex science into actionable tools patients can use, because many of the most powerful strategies were never presented to him in standard medical care.
- •Defines metabolism as how the body processes food and nutrients and links it to overall health.
- •Explains his personal journey: obesity, chronic disease diagnosis, and eventual reversal of one condition.
- •States that conventional care often ignores or underutilizes nutritional strategies despite strong evidence.
- •Frames his work as bridging rigorous science with practical, patient-centered action.
- 8:40 – 14:30
Childhood Obesity, Insulin, And The Early Damage You Don’t See
Using childhood photos, Kutnick recounts being obese despite exercising and following mainstream dietary advice. He details how fat gain rapidly worsens insulin dynamics long before obvious symptoms and explains insulin’s role as the body’s glucose thermostat.
- •Obesity rates have soared; over 68% of Americans are obese and many underestimate the damage.
- •Early fat gain sharply raises insulin and lowers insulin sensitivity even before organ damage appears.
- •Insulin is likened to a thermostat or ‘Uber’ controlling blood sugar within a narrow, life-critical range.
- •Type 1 diabetes removes endogenous insulin, forcing Kutnick to rely on an insulin pump and CGM.
- 14:30 – 23:20
Tech On The Body: Life With Type 1 Diabetes
Kutnick describes his insulin pump and continuous glucose monitor, how they work, and what his real-time glucose traces look like. He outlines normal glucose ranges and the limitations of even advanced diabetes technology.
- •Insulin pump on his arm functions as an external pancreas delivering insulin 24/7.
- •CGM on his abdomen measures interstitial glucose, approximating blood levels with some lag.
- •Normal glucose is ~70–120 mg/dL; his current reading is ~109 mg/dL on-air.
- •Even the best devices have measurement delays and inaccuracies, underscoring how hard tight control is.
- 23:20 – 28:40
HbA1c, Cardiovascular Disease, And Why Glucose Is The Top Priority
The conversation turns to the hierarchy of health risk factors, with Kutnick arguing that glycemic control outranks most others. He emphasizes HbA1c as the strongest predictor of diabetic complications and cardiovascular disease and warns that many people focus on the wrong things.
- •Cardiovascular disease is the leading killer overall and in diabetes.
- •HbA1c predicts eye, kidney, and heart complications better than most other markers.
- •Poor glucose control is compared to building a great sound system in a car with no engine.
- •Reining in blood sugar should precede worrying about secondary optimizations.
- 28:40 – 36:40
Food As Metabolic Medicine: Carbs, Keto, And Century-Old Wisdom
Kutnick explains why carbohydrates are the most potent daily driver of glucose levels and traces the history of carbohydrate restriction and ketogenic diets in diabetes and neurology. He positions modern keto science as a rediscovery of long-standing clinical practice.
- •Carbs raise blood sugar at every meal; most people eat 3–4+ carb-heavy meals daily.
- •Dietary manipulation of carbs to treat diabetes dates back to at least 1796 (John Rollo).
- •Before insulin’s discovery, ketogenic and low-carb diets were standard lifesaving therapy in diabetes.
- •Since 1921, ketogenic diets have been a validated treatment for epilepsy and later other conditions.
- 36:40 – 48:20
What A Real Ketogenic Diet Looks Like And Why It Works
The discussion clarifies misconceptions about keto, outlining what a well-formulated ketogenic diet includes and excludes. Kutnick explains ketone production, brain fuel, and the evolutionary rationale for switching between carb and fat metabolism.
- •Well-formulated keto = green leafy vegetables, fibrous low-carb plants, adequate protein, healthy fats.
- •Removed foods: sugary and starchy carbs like bagels, donuts, white rice, pasta, most baked goods.
- •Low insulin enables fat breakdown; the liver converts fat to ketone bodies that can fuel the brain.
- •Human evolution favored metabolic flexibility to survive famines; fasting and ketosis are deeply linked.
- •Fasting and keto share neural benefits, especially in seizure control, documented since early 20th century.
- 48:20 – 55:00
Cognitive Benefits Of Ketosis And The Cost Of Glucose Swings
Bartlett and Kutnick discuss noticeable cognitive differences on keto versus high-carb diets. Kutnick ties subjective experiences of focus and articulation to objective physiology of hyper- and hypoglycemia symptoms.
- •Glucose spikes and crashes cause fatigue, irritability, poor concentration, shakiness, and brain fog.
- •Symptoms of high glucose: thirst, dry mouth, frequent urination, headache, sluggishness, blurry vision.
- •Symptoms of low glucose: jitteriness, intense carb cravings, anxiety, weakness, lightheadedness.
- •Keto and exogenous ketones provide stable fuel, which many notice as improved mental clarity.
- 55:00 – 1:03:20
Live Orange Test: How ‘Healthy’ Fruit Hits A Type 1 Diabetic
Kutnick eats three oranges on camera—something he normally avoids—to demonstrate their impact on his glucose and insulin. He uses this to illustrate how even “superfoods” can be problematic in metabolically compromised people.
- •Three oranges deliver ~70–90 g carbohydrates, equivalent to about one-fifth of his daily carb allowance on standard guidelines.
- •Oranges are ADA-endorsed as a “superfood” but still trigger major glucose and insulin responses.
- •His CGM shows a steep glucose rise and his pump automatically delivers large insulin doses in response.
- •He notes type 1 diabetics (and many others) can be highly vulnerable even to foods seen as healthy.
- 1:03:20 – 1:11:40
Net Carbs, Fiber, And Why ‘Keto-Friendly’ Labels Can Be Misleading
The conversation unpacks net carbs, fiber, and the reality that product labels are often deceptive. Kutnick explains that many ‘keto’ and ‘zero sugar’ products contain alternative sweeteners that behave like sugar metabolically.
- •Net carbs = total carbs minus indigestible fiber; useful concept but often abused in marketing.
- •Two “keto-friendly” foods with identical macros can produce vastly different glucose responses.
- •Manufacturers exploit loopholes with sugar alcohols and starches like maltitol and maltodextrin.
- •Navigating modern food labels almost requires specialist training due to deliberate complexity.
- 1:11:40 – 1:26:40
Keto’s Transformative Effects On Type 1 Diabetes And Early Complications
Kutnick recounts his personal switch to keto, the dramatic reduction in insulin, and his physician’s astonishment at his normalized blood sugars. He then outlines the early brain and vascular damage typical in type 1 children following standard care.
- •Switching to keto slashed his insulin needs by ~40% and smoothed out extreme highs and lows.
- •His ADA president endocrinologist said he had never seen normal-range blood sugars in type 1 before.
- •Children with type 1 on standard care show altered white/gray matter and neurodevelopment within 3 years.
- •Within ~4 years, early vascular dysfunction (stiffness, impaired nitric oxide response) signals atherosclerosis.
- •All type 1 patients on standard advice are expected to develop at least one complication over a lifetime.
- 1:26:40 – 1:33:20
Evidence Base: Keto, Glycemic Control, And Therapeutic Carb Restriction
The host cites a large study showing improved glycemic control on keto, leading Kutnick to define therapeutic carbohydrate restriction. He emphasizes that for most Americans with some metabolic dysfunction, carb reduction can be a powerful therapeutic tool.
- •Glycemic control refers to 24‑hour, multi-day glucose stability within healthy ranges.
- •Therapeutic carb restriction focuses on the clinical outcome (improved health) of lowering carbs.
- •The ADA 2019 consensus recognized low-carb as the most evidence-based approach for type 2 diabetes.
- •An estimated 93% of Americans have some metabolic derangement; most could benefit from better carb control.
- 1:33:20 – 1:50:00
Ten-Year Case Study And Large Cohort: Keto, LDL, And Heart Health
Kutnick details a unique 10-year case study of a type 1 diabetic who switched from ADA diet to keto and maintained extraordinary cardiovascular health despite increased LDL. He then discusses his larger analysis of 46,000 patients.
- •In the 10‑year n=1 case, LDL nearly doubled on keto, but advanced cardiovascular assessments stayed excellent.
- •Despite higher LDL, the patient’s glycemic control was fully normal and insulin use fell >40%.
- •Cardiovascular metrics outperformed not only type 1 peers but also many non-diabetics.
- •In 46,000 type 1 patients, >70% of very-low-carb eaters achieved normalized HbA1c.
- •Findings challenge the assumption that higher LDL from keto automatically means higher cardiovascular risk.
- 1:50:00 – 2:03:20
Keto And High-Intensity Performance: Debunking The Carbs-Are-Essential Myth
Kutnick reviews the history of sports nutrition, from early carb-loading data to more recent short-term keto studies suggesting performance loss. He explains why those studies were flawed and presents his own controlled trial on keto-adapted athletes.
- •Carb benefits for endurance were documented as early as 1921 in marathon runners with hypoglycemia.
- •Later work found glycogen in muscle and associated low stores with fatigue, reinforcing carb-centric models.
- •Short 5-day to 3-week keto studies showed ~2% performance declines, but ignored full adaptation time.
- •Kutnick’s 4‑week randomized crossover trial controlled calories, body composition, and training.
- •After full adaptation, there was no performance decline in repeated 800m runs and record high fat oxidation at high intensities.
- 2:03:20 – 2:16:40
Exogenous Ketones: Mechanisms, Military Research, And Brain Benefits
They shift to exogenous ketones—what they are, why they were developed, and how they act in the body. Kutnick references DARPA-funded research, molecular pathways, and human studies on cognition and physical performance.
- •Exogenous ketones raise blood ketone levels quickly without dietary change—useful when immediate ketosis is needed.
- •DARPA’s $10M program tested ketone esters for warfighters; same core molecules are in commercial products.
- •Mechanisms include lowering blood glucose, binding receptors (e.g., GPR109A), and inhibiting NLRP3 inflammasome.
- •Ketones alter gene expression (epigenetics) to enhance antioxidant capacity and stress resistance.
- •Clinical trials show exogenous ketones can delay cognitive decline and improve some performance metrics.
- 2:16:40 – 2:26:40
Ketones, Cancer, Muscle Preservation, And Serious Mental Illness
Kutnick discusses his cancer research where exogenous ketones slowed metastatic progression and preserved muscle mass. He then touches on emerging trials using ketogenic interventions for serious mental illness.
- •In metastatic cancer models, exogenous ketones delayed tumor progression and reduced cachexia.
- •Muscle wasting was attenuated, with better preservation of lean mass.
- •Human physiology studies show ketones blunt muscle protein breakdown.
- •Around 11 active clinical trials examine keto and ketones in psychiatric conditions.
- •Metabolic dysfunction appears intertwined with mental health; ketone-based therapies may modulate brain energy and inflammation.
- 2:26:40 – 2:40:00
Can You Build Muscle On Keto? Appetite, Satiety, And GLP‑1
Addressing a common concern, Kutnick reviews evidence that ketogenic diets do not inherently cost muscle and can support hypertrophy. They also explore why keto often reduces appetite and how ultra-processed foods and GLP‑1 pathways drive overeating.
- •Studies show no loss of muscle on keto and similar gains to high-carb diets with resistance training.
- •Rapid initial weight loss on keto is often water loss from increased sodium excretion, not muscle loss.
- •Muscle growth hinges on hard resistance training, sufficient protein, and adequate calories—not carbs.
- •Keto often reduces hunger by stabilizing blood sugar/insulin and removing hyper-palatable, carb-rich foods.
- •Blending foods (e.g., smoothies, mashed potatoes) speeds absorption, exaggerates hormonal responses (GLP‑1, insulin), and can worsen metabolic impact.
- 2:40:00 – 2:54:10
The Engineered Food Environment And Simple Rules To Escape It
Kutnick dissects how modern foods are designed to hijack our reward systems with strategic mixes of sugar, refined carbs, and salt. He offers straightforward heuristics for ordinary people trying to navigate grocery aisles and protect their metabolic health.
- •Food companies deliberately add hidden sugar and salt to products like bacon and nut butters to increase consumption.
- •Highly processed snack foods (chips, cereals, dried fruit) are crafted for maximal palatability and “food noise.”
- •Liquid calories—soda, juice, smoothies—are particularly harmful: rapid glucose spikes, little satiety.
- •Dried fruit and refined cereals can spike glucose even more than many starchy staples.
- •Given that over half of Americans are prediabetic and ~20% of children already obese, fewer people can “tolerate” these foods safely.
- 2:54:10 – 3:06:40
Practical Blueprint: Food Awareness, Movement, And Sleep As Pillars
In the final practical segment, Kutnick summarizes what he’d tell millions of people to improve health and performance. He describes his own routine—keto diet, strength training, combat sports, and sleep habits—as an applied example.
- •Treat food like medicine: prioritize whole foods, avoid liquid calories, and consider carb restriction if metabolically impaired.
- •Exercise consistently: resistance training plus cardiovascular work dramatically improve metabolic health and quality of life.
- •Sleep is a non-negotiable third pillar; without these basics, advanced interventions are largely wasted.
- •Kutnick trains daily (weights, jiu‑jitsu, cardio) and eats 2–3 mostly ketogenic meals, often skipping breakfast.
- •He values the 22–23 hours of stable glucose and mental clarity more than transient pleasure from high-carb meals.
- 3:06:40
Should Everyone Try Keto? Individual Response, Outliers, And Epistemic Humility
The conversation closes with a philosophical angle: whether everyone should try keto, how averages mask individual variation, and how little we can truly know about ultimate questions like God or reality beyond the ‘simulation.’
- •Group averages in studies hide individual responders and non-responders; you might be an outlier in either direction.
- •Kutnick advocates experimentation: you won’t know if keto or ketones work for you unless you try.
- •He notes rare cases where nearly everyone responds (e.g., ketone effects on oxygen saturation in certain studies).
- •On metaphysics, he admits we likely can’t answer whether God exists or what lies beyond any ‘simulation.’
- •He models scientific humility: clear about what data show, and honest about what we don’t and may never know.
