Six Minute Mile

Dr. Marc Bubbs - Sports Nutritionist

Today on the podcast, we’re joined by Dr. Marc Bubbs – a sports nutritionist and the Co-Founder of ProBio Nutrition [https://www.probionutrition.com/products/problend?discount=smm26]. For over 20 years, Dr. Bubbs has worked with pro athletes and executives to deliver the highest standard in coaching and nutrition. In our conversation, he shared tons of valuable insights on a wide range of topics—everything from the role of protein in our diet, the importance of resistance training as we age, the role of supplements like ProBlend [https://www.probionutrition.com/products/problend?discount=smm26], and more. This is a must listen for runners and endurance athletes who’ve got questions about nutrition and supplements. We hope you enjoy and be sure to follow @drbubbs [https://www.instagram.com/drbubbs/?hl=en] on Instagram to see more of Marc’s content. P.S: New purchasers of ProBlend can lock in 26% off all orders in 2026 with code smm26 - Click here to shop [https://www.probionutrition.com/products/problend?discount=smm26]!

Best of 2025

2025 was a big year for the SMM Podcast, so we compiled some of the best moments into a single episode. Check it out to hear advice on running, nutrition, and wellness from all 13 of this year's guests.

Lauren Puretz - Ultrarunner and Gynecologist

Today on the Podcast, David and Ashley are joined by Lauren Puretz - Ultrarunner and Gynecologist. Together, they explore the intersection of a high-pressure medical career, motherhood, and endurance training. Lauren shares how she balances these roles, offering a refreshing perspective on why maintaining personal goals makes her a better parent and recounting the emotional experience of crossing the UTMB finish line with her children. Drawing from her medical expertise, Lauren provides candid advice specifically for female runners. She breaks down essential topics often left undiscussed, including bladder management during races, the importance of strength training as hormones shift, and practical tips for preventing chafing. Plus, she reveals her surprising strategy for quieting negative self-talk during long ultras: zoning out with entertaining audiobooks.

Hunter Leininger - Ultra Runner

In this conversation, Hunter Leininger shares his journey into the world of endurance sports, discussing his early experiences, the influence of his family, and the mental toughness required for ultra running. He emphasizes the importance of gratitude and perspective in overcoming challenges, as well as practical tips for runners, including nutrition and gear recommendations. Hunter also highlights the significance of community and generosity in the sport, and reflects on the deeper motivations behind his adventures.

Allen Lim Returns - Founder of Skratch Labs

Today on the podcast, we're rejoined by Allen Lim - Founder of Skratch Labs. We spoke to Allen about a year ago, and he dropped so much hydration wisdom the first time, we had to invite him back for another hour. This time, David and Allen explore the themes of community, identity, and the complexities of endurance sports. They discuss the importance of hydration, nutrition, and mental health in athletic performance, while also reflecting on personal journeys and the influence of sports on youth. The conversation highlights the need for better infrastructure to support outdoor activities and the role of sports in fostering connection and resilience.