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The Eat for Endurance Podcast

Claire Shorenstein, MS RD CSSD
The Eat for Endurance Podcast
Latest episode

147 episodes

  • The Eat for Endurance Podcast

    Fiber for Athletes: Timing, Gut Health & How Much You Need

    30/07/2026 | 55 mins.
    Fiber has been having a moment lately. With social media trends like “fibermaxxing" on the rise and countless fiber-rich products hitting the market, it’s easy to get the misguided message that more is always better.

    So...how much fiber do athletes actually need?
    In episode 142 of The Eat for Endurance Podcast, fellow Sports Dietitian Angie Dye, MS, RDN, CSSD, joins me to answer that question and explain how to include fiber to support health without sabotaging your training.
    Angie and I discuss:
    What fiber is and why it's so important
    Different fiber types and how much you should be eating each day
    How fiber supports gut health, blood sugar, heart health, and more
    When to eat fiber and when to avoid it around training and racing
    What "fibermaxxing" is and if you should do it
    Our favorite high-fiber foods for athletes
    Whether fiber supplements and fortified foods have a place in your diet
    Special considerations for vegan and vegetarian athletes
    Practical ways to increase your fiber intake without upsetting your gut
    A big takeaway from this conversation is that athletes shouldn't fear fiber. They just need to be strategic with it! Tune in to hear the whole conversation.
    Links & Resources
    Follow Angie on Instagram and visit her website, including her blog all about fiber for athletes
    Support my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchase
    Join my membership, Fuel for Life Crew, for just $39/month (cancel anytime)
    Check out my free nutrition downloads
    Support the podcast by shopping all my affiliate links and joining my Patreon community
    Interested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry form (limited spots available)
    Have a topic you’d like to request? Email me at claire@eatforendurance.com
    Enjoyed this episode? Please leave a 5-star review and subscribe to help more athletes fuel better!
    Disclaimer: All information provided is for educational and entertainment purposes only and is not a substitute for individualized medical or nutrition recommendations.
    Want to get in touch? Send Claire a message!
    Support the show
    Thanks for listening! Follow me on Instagram and Facebook (@eatforendurance).
  • The Eat for Endurance Podcast

    Are GLP-1s Safe for Athletes?

    16/07/2026 | 1h 26 mins.
    Many athletes are not good candidates for GLP-1s. But for some, these medications can be a useful tool.
    In episode 141 of The Eat for Endurance Podcast, I'm joined by fellow Sports Dietitian and endurance athlete Jennifer O'Donnell-Giles, MS, RDN for the final installment of my GLP-1 mini-series. Jenn brings 27 years of clinical experience to this conversation, along with a perspective that's evolved a lot over the past few years.
    Jenn and I discuss:
    How natural GLP-1 production can decline with age
    Why under-fueling is still the primary issue for many athletes
    Who should (and shouldn't) consider these medications
    Potential risks of GLP-1 use, including lean body mass loss and GI distress
    Potential benefits to inflammation, autoimmune conditions, gut health, and mood
    Nutrition and supplement strategies when appetite is lower
    Dosing and microdosing for therapeutic use, not just weight loss
    Why athletes cycle on and off GLP-1s, including around race training
    Jenn's own story: early menopause, a cardiovascular family history, and how a short course of GLP-1s changed her health and performance
    Jenn's biggest takeaway: in the athlete population, a GLP-1 is just one piece of the puzzle, and works best alongside solid nutrition and lifestyle habits. Weight loss can be part of why someone uses one, but there are other potential benefits as well.
    Whether a GLP-1 is right for an athlete depends on who they are, why they want it, and whether the foundation is already in place. It's not appropriate for everyone, especially anyone with a history of disordered eating or a complicated relationship with food. 
    Tune in for a nuanced, experience-based look at where these medications can genuinely help endurance athletes, and where they can do real harm.
    Links & Resources
    Follow Jenn on Instagram and visit her website 
    Support my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchase
    Join my membership, Fuel for Life Crew, for just $39/month (cancel anytime)
    Check out my free nutrition downloads
    Support the podcast by shopping all my affiliate links and joining my Patreon community
    Interested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry form (limited spots available)
    Have a topic you'd like to request? Email me at claire@eatforendurance.com
    Enjoyed this episode? Please leave a 5-star review and subscribe to help more athletes fuel better!
    Disclaimer: All information provided is for educational and entertainment purposes only and is not a substitute for individualized medical or nutrition recommendations.
    Want to get in touch? Send Claire a message!
    Support the show
    Thanks for listening! Follow me on Instagram and Facebook (@eatforendurance).
  • The Eat for Endurance Podcast

    Your Iron Questions, Answered: Everything Athletes Need to Know

    02/07/2026 | 1h 32 mins.
    Iron deficiency is one of the most misunderstood nutrition issues affecting active people, and it's a lot more complicated than a single lab value.
    In episode 140 of The Eat for Endurance Podcast, I'm joined by fellow Sports Dietitian Callie Roseland, MS, RDN, CSSD to break down everything you need to know about iron and ferritin as an active person.
    Callie and I discuss:
    The difference between iron deficiency and anemia
    Who's most at risk
    Common signs and symptoms of low iron and ferritin
    Which blood tests to order
    Why "normal" lab values aren't always optimal 
    What low ferritin but "normal" iron actually means
    How gut health as well as different foods influence iron absorption
    How much iron you need from food, plus meal/snack ideas
    When supplementation makes sense
    Iron supplement timing and practical strategies
    Callie's mantra throughout the episode is simple but powerful: "Test, don't guess."
    Understanding WHY your iron is low is what allows you to address the root cause, not just mask symptoms with a supplement. 
    Tune in for the full breakdown on testing, supplementation, and nutrition strategies to support healthy iron and ferritin levels.
    Links & Resources
    Follow Callie on Instagram and visit her website
    Support my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchase
    Support my sponsor Good Ranchers: Use code IRON for $40 off a one-time box or $100 off your first 3 boxes if you subscribe (enter "Eat for Endurance Podcast" in the post-purchase survey)
    Join my membership, Fuel for Life Crew, for just $39/month (cancel anytime)
    Check out my free nutrition downloads
    Support the podcast by shopping all my affiliate links and joining my Patreon community
    Interested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry form (limited spots available)
    Have a topic you’d like to request? Email me at claire@eatforendurance.com
    Enjoyed this episode? Please leave a 5-star review and subscribe to help more athletes fuel better!
    Disclaimer: All information provided is for educational and entertainment purposes only and is not a substitute for individualized medical or nutrition recommendations.
    Want to get in touch? Send Claire a message!
    Support the show
    Thanks for listening! Follow me on Instagram and Facebook (@eatforendurance).
  • The Eat for Endurance Podcast

    Grayson Murphy on Crohn's Disease, Performance Anxiety, and Fueling as a Pro Runner

    11/06/2026 | 1h 13 mins.
    First, a huge congratulations to Grayson and her husband on the recent birth of their daughter, Violet! At the time of recording, she was just days away from becoming a first-time mom, and I couldn't be more excited for them.
    In episode 139 of The Eat for Endurance Podcast, I’m joined by professional trail runner and two-time World Mountain Running Champion Grayson Murphy.
    Grayson has dealt with her fair share of challenges as an athlete, including an eating disorder in high school, years of unexplained GI issues that ultimately led to a Crohn's disease diagnosis, performance anxiety, and most recently, training and fueling through pregnancy as a professional runner.
    Despite all of that, she has kept showing up to start lines, and winning, while learning how to fuel better, advocate for her health, and navigate the ups and downs that come with being human.
    Grayson and I discuss:
    Her transition from soccer to collegiate and eventually professional running
    Years of unexplained GI symptoms, misdiagnoses, and the road to finally getting answers
    Training and race-day fueling strategies, including for athletes with Crohn's disease
    Tried and tested strategies to alleviate performance anxiety
    Therapy, medication, and other mental health tools that have helped her
    Her move from sub-ultra distances to the 50K
    Training and fueling through pregnancy as a professional athlete
    Whether you're navigating a chronic illness, have felt dismissed by a healthcare provider, or want to fuel smarter and show up to race day with less anxiety, this episode is for you.
    🎧 Grab your headphones, because this is a good one!
    Links & Resources
    Follow Grayson on Instagram and visit Wild Strides Paper Co.
    Check out my new sponsor, Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchase
    Check out my podcast sponsor, Good Ranchers: Use code IRON for $40 off a one-time box or $100 off your first 3 boxes if you subscribe (enter "Eat for Endurance Podcast" in the post-purchase survey)
    Join my membership, Fuel for Life Crew, for just $39/month (cancel anytime)
    Check out my free nutrition downloads
    Support the podcast by shopping all my affiliate links and joining my Patreon community
    Interested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry form (limited spots available)
    Have a topic you’d like to request? Email me at claire@eatforendurance.com
    Enjoyed this episode? Please leave a 5-star review and subscribe to help more athletes fuel better!
    Disclaimer: All information provided is for educational and entertainment purposes only and is not a substitute for individualized medical or nutrition recommendations.
    Want to get in touch? Send Claire a message!
    Support the show
    Thanks for listening! Follow me on Instagram and Facebook (@eatforendurance).
  • The Eat for Endurance Podcast

    What Is Food Noise? A Dietitian's Personal Experience with GLP-1 Medications

    28/05/2026 | 1h 30 mins.
    GLP-1 medications are taking the world by storm, but the conversations surrounding them can lack nuance. That’s why I’m doing a 3-part podcast series with three different dietitians all about these drugs.
    ICYMI, we kicked things off with GLP-1 Medications: What Active People Need to Know.
    The series continues in episode 138 with Summer Kessel, RD, CSOWM, a Certified Specialist in Obesity and Weight Management and GLP-1 nutrition expert. Summer also has personal experience taking GLP-1s herself, which brings a unique perspective to this conversation.
    Summer and I discuss:
    What food noise is, and how it differs from hunger or cravings
    Her personal experience with obesity, weight loss, and taking GLP-1s
    Overlap between food noise, chronic dieting, and disordered eating patterns
    Who should (and shouldn't) be on these drugs 
    Risks and benefits of GLP-1 use in different populations
    Why inappropriate GLP-1 use cases shouldn't overshadow people who genuinely need these drugs
    How weight stigma and judgment can make GLP-1 conversations even more difficult
    Why compassion, individualized care, and ongoing professional support matter 
    I hope this episode helps you better understand GLP-1 medications and the experiences of those who use them. I know this is a controversial topic...questions and feedback are always welcome (claire@eatforendurance.com)! 
    🎧 Tune in for the full conversation!
    Links & Resources
    Follow Summer on Instagram, visit her website, and buy her book
    Check out my sponsor, Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchase
    Check out my sponsor, Good Ranchers: Use code IRON for $40 off a one-time box or $100 off your first 3 boxes if you subscribe (enter "Eat for Endurance Podcast" in the post-purchase survey)
    Support the podcast by shopping all my affiliate links and joining my Patreon community
    Join my membership, Fuel for Life Crew, for just $39/month (cancel anytime)
    Interested in 1:1 coaching? Fill out a new client inquiry form
    Enjoyed this episode? Please leave a 5-star review and subscribe to help more athletes fuel better!
    Disclaimer: All information provided is for educational and entertainment purposes only and is not a substitute for individualized medical or nutrition recommendations.
    Want to get in touch? Send Claire a message!
    Support the show
    Thanks for listening! Follow me on Instagram and Facebook (@eatforendurance).
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About The Eat for Endurance Podcast
The food you put into your body has a massive impact on how you perform in your athletic training and everyday life. Sports Dietitian and distance runner Claire Shorenstein explores the connection between nutrition, performance, and health for busy, active people. Tune in for evidence-based guidance, inspiring athlete stories, and practical tips on a wide variety of nutrition topics to fuel better, crush your endurance goals, and thrive as a human being.For additional free nutrition resources plus coaching services, visit eatforendurance.com.
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