Strength Before Supplements: What Collagen Science Actually Shows | Dr. Keith Baar

The Vitality Collective Podcast is a health and fitness podcast and performance podcast focused on strength, longevity, and real-world performance, bridging the gap between health and performance. Hosted by Dr. Jeremy Bettle, PhD — an internationally recognized expert in Human Performance with over 20 years of experience working with elite athletes and high performers — this podcast brings world-class expertise straight to you. Built from elite sport and applied to real life, it breaks down what actually drives resilience, health, performance, and long-term capability. Guest Bio Dr. Keith Baar received his Bachelor's in Kinesiology from the University of Michigan where he also served as an Assistant Strength and Conditioning Coach with the University of Michigan Football team. He then received a Master's degree from the University of California, Berkeley, and his PhD from the University of Illinois where he discovered the first molecular signal that contributes to load-induced muscle hypertrophy. He did his postdoctoral studies on the molecular mechanism underlying the muscular adaptation to endurance exercise under the direction of the legendary Dr. John O. Holloszy at Washington University in St. Louis. Over the last decade, Keith has focused his research efforts on discovering how load and nutrition alter tendon function. This work is changing the way that we load connective tissues to improve performance and accelerate return to play. Keith is currently the head of the Functional Molecular Biology Laboratory (FMBLab) at the University of California Davis. Work from his lab spans from the molecular mechanisms that lead to adaptation to human studies that translate these basic discoveries to interventions that improve performance, longevity, and quality of life.  Links UC Davis Faculty Profile: https://health.ucdavis.edu/physiology/faculty/baar.html Dr. Baar on LinkedIn: https://www.linkedin.com/in/keith-baar-64914a31/ Three Actionable Takeaways Get the exercise right. That means understanding your genetic predispositions and selecting exercise accordingly. If neurocognitive decline runs in your family, both strength and endurance training are important. If heart disease runs in your family, both types of exercise provide different but necessary stimuli to the heart. The exercise itself is 95 to 98 percent of what drives your adaptation. Concentrate on the things that matter. Whether in training, nutrition, or work, effort spent on low-return activities comes at the expense of high-return ones. Building the foundation correctly means you spend less time and money on things that are unlikely to move the needle. Educate yourself or find people you trust who are genuine experts in what you need. The more you understand how the biology works, the harder it becomes to buy into life hacks that cost a lot and do very little. You do not need a course, just enough exposure to credible, varied sources to build a working filter for what is plausible and what is not.  Key Insights Collagen is not a complete protein. It lacks several essential amino acids and scores zero on protein quality scales. Taking it as a muscle-building supplement instead of a leucine-rich source like whey is counterproductive to your goals. Dietary collagen does not travel intact to your tendons or skin. The gut breaks it into amino acids. What matters is whether those amino acids, primarily glycine and proline, are available in the right environment when your cells need to make new collagen. Vitamin C is not optional when supplementing collagen for connective tissue purposes. Without adequate vitamin C, cells cannot secrete the collagen they produce. Scurvy is essentially a failure of collagen export, not collagen production. Timing collagen intake 30 to 60 minutes before loading exercise is more effective for tendons and ligaments than taking it after, because these tissues rely on fluid flow during movement to deliver nutrients rather than blood flow.