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The Kris Gethin PodcastAuthor: Kris Gethin
Kris Gethin is widely known across the health and fitness space as one of the leading body transformation specialists in the world - he has been voted as the worlds #1 transformation coach and personal trainer on various platforms such as Trainerize and Bodybuilding.com and governing bodies such as PT Academy. As the co-founder of the Kris Gethin Gyms franchise, co-founder of Unmatched Supplements, former editor-in-chief of BodyBuilding.com, former editor-at-large at Weider Publications and former publisher of Kaged Muscle magazine, Kris has helped educate and change the lives of millions of people. Kris is the host of The Kris Gethin Podcast and author of the best-selling book Body by Design. Kris has competed as a natural pro bodybuilder, IRONMAN Triathlete, Ultramarathoner, Spartan competitor and Motocross racer of 13 years. He currently helps celebrities several months of the year, trains clients online year round via www.krisgethin.com and hosts anti-aging/fitness and biohacking seminars and retreats worldwide. In this podcast, Kris dissects myths of muscle building and endurance, bridges the gap between health and sports supplementation, expands upon the healing benefits of smart nutrition, and strategies to change your perception for a happier, healthier and real way of life. For more information check out https://www.krisgethin.com/ Language: en Genres: Fitness, Health & Fitness, Nutrition Contact email: Get it Feed URL: Get it iTunes ID: Get it Trailer: |
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249. Fat Loss Is a Nervous System Decision, Not a Calorie Equation
Episode 249
Thursday, 5 March, 2026
Fat loss does not fail because of weak discipline. It fails because the body does not feel safe enough to release stored energy. Long before macros, cardio, or meal timing matter, the nervous system decides whether energy will be mobilized or defended. When sympathetic tone dominates through late nights, artificial light exposure, chronic stress, stimulant reliance, and inflammatory inputs, the body shifts into conservation mode. Cortisol rhythm flattens, insulin sensitivity declines, thyroid conversion slows, leptin signaling weakens, and fat storage becomes protective rather than optional. In this episode, I break down why fat loss is governed by circadian alignment, mitochondrial efficiency, food quality, and autonomic balance. I explain how artificial sweeteners create metabolic prediction errors, how caffeine entrenches sympathetic dominance, why eating in a stressed state alters nutrient partitioning, and how sunlight, grounding, and predictable routines restore metabolic confidence. I also explore inflammation, omega-3 to omega-6 balance, mitochondrial signaling, and the identity shift required to stop fighting biology and start working with it. What's Discussed: (00:00) Fat loss is a nervous system decision, not a calorie equation (03:05) Sympathetic dominance, cortisol rhythm, and why the body defends fat (07:58) Eating under stress, digestion breakdown, and hidden inflammation (15:30) Artificial sweeteners, insulin prediction errors, and dopamine disruption (19:08) Caffeine, chronic cortisol elevation, and metabolic rigidity (20:55) Circadian rhythm, sunlight, and mitochondrial energy allocation (26:18) Inflammation, omega balance, and why food quality shifts outcomes (31:23) Identity alignment and creating an environment where fat loss is allowed. Resources Referenced in This Episode: Unmatched Supps Code: KGC10 (10% off) Link: https://www.unmatchedsupps.com Ra Optics Blue Light Blocking Glasses Code: GETHIN (15% off) Link: http://raoptics.com/gethin Red Light Rising (red light therapy products) Code: GETHIN5 Link: https://redlightrising.co.uk/ Lumaflex (localized red light therapy) Code: KRISGETHIN (10% off) Link: https://www.lumaflex.com/KrisGethin?sca_ref=4602702.myGSQTPeAr Bahe Grounding Trainers Code: KRIS15 Link: https://bahe.co Thank you to our sponsors: Biostack: NAD + Cell Shield from Biostack Labs https://biostacklabs.com/kris Unmatched Supps: Natural pre workout, recovery, and hydration support (KGC10 for 10% off) Find more from Kris: Website: https://www.krisgethin.com/ Instagram: @krisgethin Youtube: https://www.youtube.com/krisgethin 2 Shred: https://www.unmatchedsupps.com/products/2shred
