What if creatine could do more than help build muscle? In this episode of The Dr. Plant Podcast, Dr. Joshua Plant sits down with Dr. Rick Kreider, Professor and Director of the Exercise & Sport Nutrition Lab at Texas A&M University and co-founder of the International Society of Sports Nutrition, to explore the evolving science of sports nutrition and healthy aging. They discuss decades of research on creatine, including its potential role in muscle preservation, brain energy, cognition, and quality of life as we age. They also dive into nootropics and adaptogens like ashwagandha, the science of stress and cortisol, and what emerging research may tell us about supporting cognitive and physical performance. Along the way, Dr. Kreider explains why supplements should build on—not replace—the fundamentals of exercise, protein, sleep, and a healthy diet. If you still think creatine is just for building muscle, this conversation may change the way you look at it.