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Real Fuel with SLS

Real Fuel with SLS

By: Stevie Lyn Smith MS RDN CSSD CDN
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About this listen

Welcome to Real Fuel with SLS—the podcast where performance meets real life. I’m Stevie Lyn Smith, a sports dietitian, and every week we’re breaking down nutrition for runners, triathletes, and everyday athletes who want to train smarter, recover faster, and feel better doing it. No food guilt. No complicated plans. Just practical fueling strategies, real conversations, and science that actually makes sense. Whether you’re chasing a PR or just trying to get through your next workout feeling strong—this podcast is for you. Let’s get into it.

© 2026 Real Fuel with SLS
Hygiene & Healthy Living
Episodes
  • Sub-2:10 Marathon Secrets: Training, Fueling, and Breakthroughs with Joe Whelan
    Apr 7 2026

    In this episode, we explore the journey of Joe Whelan, a high-performing athlete in the world of distance running. Joe shares his insights on training through brutal winters, experimenting with nutrition and pacing, and playing a different game in the highly competitive world of marathoning. Whether you're an endurance athlete or just curious about pushing human potential, this conversation offers valuable lessons on resilience, innovation, and mental toughness.

    In this episode we talk about:

    • Joe Whelan’s journey from high school success to Olympic trials and elite marathoning
    • Training strategies for harsh winter conditions, including treadmill tactics
    • The importance of mental strategies and placebo effects in race nutrition
    • Experimenting with fueling plans, including gels, hydration, and novel approaches like ketone supplements
    • Navigating race conditions and GI issues at ultra-high effort levels
    • Strategic race selection for global ranking and Olympic aspirations
    • Insights into the competitive marathon scene in Europe versus the US
    • The role of mental visualization, placebo, and mindset during critical race moments
    • Behind-the-scenes of race logistics, including carb loading and pacing in competitive fields
    • Joe’s upcoming race plans and how he’s playing the long game for international recognition

    Elevate your understanding of endurance sports by listening to an athlete who’s out there not just competing but innovating at the highest level. His approach to training, nutrition, and mental fortitude pushes the boundaries of what it means to be a marathoner—less about following the crowd, more about leading your own race.

    Stay connected:

    • Follow Joe's running journey on Instagram: @jpwhelan
    • Follow Stevie on Instagram: @stevielynlyn
    • Join Stevie’s newsletter: Stevie Lyn Nutrition newsletter
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    49 mins
  • Q&A: Mastering Carb Loading and Debunking Protein Myths
    Mar 24 2026

    Understanding Protein and Carb Loading: Clear Insights for Optimal Nutrition

    In this episode, I break down the essentials of protein—what it is, how to evaluate its quality, and common misconceptions. I also delve into effective carb loading strategies for endurance athletes and practical tips for race preparation, helping you make smarter nutrition choices for your training and racing.

    I chat more about:

    • The fundamental role of protein: amino acids, macronutrients, and their functions
    • Why more protein isn't always better and the importance of quality sources
    • Common myths around protein smoothies, protein chips, and processed protein foods
    • How to interpret food labels and understand "high in protein" claims
    • The significance of protein digestibility scores (PDCAAS) and evaluating food quality
    • The impact of protein quality on overall health and muscle building
    • Understanding nutrient density versus processed "proteinified" foods
    • The purpose of carb loading: optimizing muscle glycogen for endurance events
    • Practical carb loading strategies: timing, food choices, and hydration
    • The importance of practicing fueling strategies during training
    • How to tailor fueling plans based on race length, conditions, and personal tolerance
    • Balancing carbohydrate intake and minimizing GI issues on race day
    • Tips to train your gut and avoid common fueling mistakes

    Connect with Stevie:

    • Instagram
    • Website

    This episode offers straightforward guidance to demystify complex nutrition topics, empowering you to optimize your diet for training and racing success. Remember, understanding nutrition is about balance, quality, and consistent practice—don't just follow the latest trend, focus on what works for your body.

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    32 mins
  • The RED-s Deep Dive: Metabolism, Heart Health, and Fueling Your Potential
    Mar 10 2026

    In this episode, Becca McConville, an expert on relative energy deficiency in sports, shares insights on REDs and its impact on health and performance. We break down the complexities of metabolic dysfunction, the "sneaky" ways athletes end up under-fueled, and why a low resting heart rate might not be the "fitness flex" many think it is.

    From the impact of GLP-1 medications on performance to the psychology of "a la carte" movement, this conversation provides a roadmap for athletes and clinicians to move from a state of survival to true performance.

    We chat about:

    • REDS and its effects on metabolism and health
    • Unstructured activity and its role in energy expenditure
    • Nutritional strategies for athletes to prevent REDS
    • Metabolic markers and signs of low energy availability
    • The impact of low heart rate and HRV on athlete health
    • And so much more!

    Stay Connected:

    • Follow Becca on Instagram: @rebeccaeddietitian
    • Check out Becca's website: https://beccamcconville.com/
    • Follow Stevie on Instagram: @stevielynlyn
    • Join Stevie’s newsletter: Stevie Lyn Nutrition newsletter
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    53 mins
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