Nick sits down with Dr. Dwayne Jackson, a PhD in exercise physiology, former pro motocross racer, and former bodybuilder, for a wide-ranging, no-filter conversation. They start with Dwayne's path from pro motocross and Bombardier Sea-Doo racing into bodybuilding and academia, then get into why building muscle was never really about a big caloric surplus, how bodybuilding's drug culture has shifted since the 90s, and why open-class bodybuilders are getting sick at a higher rate than classic physique guys.
From there it's a deep dive into coaching. They cover the #1 mistake trainers make with weight-loss clients (nutrient-poor, fiber-poor "macro dense" diets that wreck gut health), how driving calories too low blunts hunger and satiety hormones and triggers RED-S, and what "food noise" actually is neurologically. Dwayne breaks down what the research says about GLP-1 drugs (appetite, addiction pathways, comparisons to bariatric surgery) and the specific dietary groundwork coaches need before putting a client on one. They close on blood work most doctors don't order by default (ApoB, free T3, SHBG, hsCRP), fixing blood pressure through stress and movement rather than meds, what "good" gut health actually looks like, and why fiber and probiotic marketing hype is mostly noise.
Dr. Dwayne Jackson holds a PhD in exercise physiology, is a former pro motocross racer and Sea-Doo world championship competitor, and has competed in bodybuilding since age 17. He teaches the Pre-Script nutrition and body composition course, has formulated supplements for multiple companies, and serves as resident doc on the IFBB PRO podcast.
Timestamps:
- 09:34 Why "surplus" is a myth: building muscle without a massive bulk
- 21:43 The #1 mistake coaches make with weight-loss clients
- 27:38 Food noise, GLP-1s, and the neuroscience of appetite
- 38:49 The blood work your doctor probably isn't ordering
- 49:51 Fixing blood pressure without meds: movement, stress, and the salt myth
Follow Dr. Dwayne Jackson: https://www.instagram.com/drdnjackson/
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