Why Casey Ruff's Clients Lost 732 lbs — And 98% Was Fat

<p>In this episode of The Feldman Protocol, can elite athletes truly thrive on fat alone — with zero carbs? Dave sits down with Casey Ruff (personal trainer, nutrition coach, and host of Boundless Body Radio) to explore his journey from gym kid to keto rebel, high-intensity training principles, a rogue low-carb experiment inside a corporate fitness company that produced 732 lbs of fat loss, the LMHR study saga, carnivore adaptation and anxiety relief, and a surprising email from the American Heart Association.</p><p><br></p><p>🔥 This episode is sponsored by us --</p><p>Own Your Labs 👉 `https://ownyourlabs.com/sp/39`</p><p> Private blood testing services</p><p>🩸Over 300 blood tests</p><p>💰Extremely affordable</p><p>❤️ We love our customers</p><p>(Yes, we are literally funding the entire podcast from our own company -- so if you want to show your support, keep getting your private blood testing through our service. Thank you! 🙏)</p><p><br></p><p>🔗 CONNECT WITH DAVE FELDMAN:</p><p>Main Channel: `https://youtube.com/@realDaveFeldman`</p><p>X/Twitter: `https://x.com/realDaveFeldman`</p><p>Instagram: `https://instagram.com/realDaveFeldman`</p><p>Website: `https://thefeldmanprotocol.com`</p><p><br></p><p>⏱ Chapters</p><p>3:17 – Casey&#39;s ice hockey obsession</p><p>8:05 – A punch that changed everything</p><p>12:38 – Two years in Brazil as a missionary</p><p>17:03 – From architecture dreams to personal training</p><p>21:06 – Finding his calling at the gym</p><p>28:51 – High intensity training explained</p><p>36:57 – Why sport-specific training is a myth</p><p>39:02 – Metabolic carts &amp; the RER deep dive</p><p>43:01 – The Biggest Loser metabolic damage case</p><p>46:24 – Calories in/out: why it failed everyone</p><p>50:25 – Nina Teicholz &amp; The Big Fat Surprise</p><p>54:07 – Bonking, glycogen, and fat adaptation</p><p>58:10 – Butter-fed athletes &amp; the keto revelation</p><p>1:04:13 – Casey&#39;s fasted hockey game story</p><p>1:06:07 – Going rogue with Diet Doctor meal plans</p><p>1:14:02 – Getting the nutrition certification</p><p>1:17:17 – The contest winner who changed everything</p><p>1:20:19 – 732 lbs lost, 98.1% from fat</p><p>1:27:33 – Did results hold after the contest?</p><p>1:33:27 – Starting Boundless Body podcast in 2020</p><p>1:41:25 – On being a natural podcast host</p><p>1:52:17 – The pandemic pivot to virtual training</p><p>1:59:08 – Carnivore and the vanishing anxiety</p><p>2:04:31 – The LMHR Match Analysis saga begins</p><p>2:16:26 – Low Carb Denver 2023 collective gasp</p><p>2:23:22 – Dave reveals new Heartflow re-analysis</p><p>2:29:35 – The movie &amp; Robin&#39;s bipolar decision</p><p>2:31:37 – The AHA misinformation email</p><p>2:42:14 – Prepping for Arthur Agatston</p><p>2:48:42 – Fat adaptation and hockey performance</p><p>2:55:39 – Travel strategies: fasting vs. carnivore snacks</p><p>2:59:08 – Changing his mind: strict carnivore or not?</p><p>3:05:36 – Where to find Casey</p><p><br></p><p>#FeldmanProtocol #DaveFeldman #CaseyRuff #LowCarbLife #KetoDiet #CarnivoreDiet #FatAdaptation #HighIntensityTraining #LMHRStudy #CholesterolCode #MetabolicHealth #SeedOils #HeartHealth #NutritionCoach #EnduranceSport #BloodWork #Ketosis #BoundlessBodyRadio</p><p><br></p>