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In this episode, Dr. Andrew Kutnik, a researcher who reversed his own obesity and manages Type 1 diabetes through nutritional strategies, explores the transformative power of the ketogenic diet on both health and performance. He shares compelling research on how carbohydrate restriction can normalize glucose control in diabetics (02:28), improve cognitive function through ketone utilization (59:48), and enhance athletic performance contrary to conventional sports nutrition wisdom (47:00). Drawing from his decade-long self-study and work with thousands of patients, Dr. Kutnik reveals why stable blood sugar levels might be the most critical factor for long-term health (11:25), while offering practical strategies to navigate today's processed food environment and optimize metabolic health through therapeutic carbohydrate restriction.
Metabolic researcher with over 15 years of experience who overcame obesity (255 lbs) and type 1 diabetes through ketogenic nutrition. Conducted the longest study of its kind on the ketogenic diet's impact on type 1 diabetes patients, published groundbreaking research on exogenous ketones, and authored studies on metabolic health. His work on glucose control and cardiovascular health has established him as a leading authority in therapeutic nutrition.
Entrepreneur, investor, and host of The Diary of a CEO podcast with millions of listeners worldwide. Co-owner of ketone supplement company Ketone IQ and advocate for metabolic health optimization through ketogenic nutrition.
Don't outsource your health to others—become obsessed with understanding your own metabolic signals. Dr. Kutnik transformed his life by questioning standard advice and experimenting with continuous glucose monitors and insulin pumps. Track your body's responses to different foods and protocols, because (87:00) "you will never know the potential of its benefit or lack thereof if you don't try." Science shows averages, but you might be the outlier who responds dramatically differently than the norm.
Your cognitive performance directly correlates with blood sugar stability. High glucose levels cause brain fog, fatigue, and irritability, while crashes create jittery anxiety and carb cravings. (20:00) The constant glucose rollercoaster from standard diets creates energy volatility that kills sustained focus. Professionals seeking peak mental performance should prioritize metabolic stability over convenient food choices—your next presentation depends on what you ate three hours ago.
Manufacturers deliberately combine sugar, salt, and fat to hijack your brain's reward system and drive overconsumption. (68:09) Even "healthy" foods like bacon and nut butters contain hidden sugars designed to increase palatability. Read every ingredient label like your career depends on it—because it does. The 70% of processed foods in grocery stores are engineered to make you always feel hungry and never satisfied.
Therapeutic carbohydrate restriction can normalize the most powerful disease risk factor—HbA1c levels. (12:00) This isn't about eliminating nutrients; it's about removing the foods that spike glucose and insulin most dramatically. Focus on green leafy vegetables, quality proteins, and healthy fats while avoiding liquid calories, processed foods, and refined grains. Even dried fruits concentrate sugars to dangerous levels—treat them like emergency glucose tablets, not health foods.
Ketones increase brain network stability by 87% compared to glucose, offering sustained mental fuel without energy crashes. (58:54) Whether through dietary ketosis or exogenous ketone supplements, this metabolic state enhances focus, decision-making, and information absorption. The military and elite athletes use ketone technology for cognitive and physical performance advantages—consider it your competitive edge in high-stakes professional environments.