The Eat for Endurance Podcast

Claire Shorenstein, MS RD CSSD

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.

  1. 1d ago

    Is Your Vitamin D Holding You Back?

    Low vitamin D can leave you more prone to bone injuries and illness, and it's more common in athletes than you might think. Few foods are good sources, and making enough from sunlight isn't a given, especially as the days get shorter. In episode 147 of The Eat for Endurance Podcast, sports dietitian and researcher Kelly Pritchett, PhD, RD, CSSD, joins me to talk about:  Why vitamin D matters for bone health, muscle function, immunity, and athletic recoveryThe best food sources of vitamin D, and why these foods alone won't cut itHow sun exposure, skin tone, sunscreen, clothing, season, and geography impact your ability to produce vitamin D Common causes of low vitamin D and who's most at riskWhat vitamin D blood test results mean and why recommendations for optimal levels differWhen to get your vitamin D tested and how time of year affects your resultsWhen supplementation makes sense, and how dosage can varyHow vitamin D works with calcium, magnesium, and vitamin K, especially for bone stress injuriesWhat the research says about vitamin D, illness, and performanceTune in for a practical, evidence-based look at vitamin D for athletes. Links & Resources Follow Kelly Pritchett on InstagramJoin my membership, Fuel for Life Crew, for $39/monthCheck out my free nutrition downloadsInterested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry formBrowse my sports nutrition masterclassesSupport the podcast by shopping my affiliate linksHave a topic you'd like to request? Email me at claire@eatforendurance.comEnjoyed this episode? Please leave a 5-star rating and review 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).

    Is Your Vitamin D Holding You Back?
  2. Sep 24

    Meal Prep for Busy Athletes: Simple Strategies to Save Time and Money

    Meal prep is a great way to make busy weeks easier, but it doesn’t have to mean spending your entire Sunday cooking identical, boring meals or blowing through your entire budget in one grocery haul.   In episode 146 of The Eat for Endurance Podcast, sports dietitians Sandra Frail and Kiana Gibson of No Sweat Nutrition join me to talk about meal planning and meal prep for active people, and ways to save money on both everyday and performance nutrition. Sandra, Kiana, and I discuss: The difference between meal planning and preppingHow to start meal prepping when you feel overwhelmed or short on timeRealistic meal prep strategies for busy athletes, families, and people with demanding jobsHow to use batch-cooked ingredients in different meals throughout the weekThe role of convenience foods, leftovers, takeout, and “emergency meals”How to reduce food waste and save money on everyday groceriesBudget-friendly protein, produce, and carbohydrate optionsHow to lower the cost of gels, sports drinks, bars, and other sports nutrition productsOne of the biggest takeaways from this conversation is that the best meal prep strategy is the one that actually fits your life.  Tune in for lots of practical ideas you can put to use this week! Links & Resources Follow Sandra and Kiana on InstagramVisit the No Sweat Nutrition website, and sign up to be notified when their DIY Sport Fuel PDF dropsJoin my membership, Fuel for Life Crew, for $39/monthCheck out my free nutrition downloadsInterested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry formSupport the podcast by shopping my affiliate links Have a topic you'd like to request? Email me at claire@eatforendurance.comEnjoyed this episode? Please leave a 5-star rating and review 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).

    Meal Prep for Busy Athletes: Simple Strategies to Save Time and Money
  3. Sep 10

    Amanda Brooks on Ditching Diet Culture and Discovering What Her Body Can Do

    Nutrition can be complex and personal, especially for athletes. Many people absorb misguided messaging about "good" and "bad" foods and what your body should look like, and lose sight of what's actually important for performance and overall health. In episode 145 of The Eat For Endurance Podcast, longtime runner and experienced run coach Amanda Brooks joins me to talk about shifting her focus from restricting food to fueling more freely, resulting in stronger runs and a better relationship with her body. Amanda and I discuss: Growing up in the fat-free era, with diet culture and negative body image messagingHow running went from a weight-loss tool to a reason to fuel properlyHow she now fuels long runs and races Fueling myths and misconceptions Amanda often sees among the runners she coachesHow nutrition and exercise needs shift for female runners as they ageHow both food and running can bring people together A big takeaway from this conversation is that nutrition doesn't have to be about weight loss, or taking things away. It can (and should) be about giving your body what it needs to run, recover, and feel its best. Tune in to hear the full conversation! Links & Resources Follow Amanda on Instagram, visit RunToTheFinish, and listen to the Tread Lightly PodcastSupport my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchaseJoin my membership, Fuel for Life Crew, for just $39/month (cancel anytime)Check out my free nutrition downloadsInterested in comprehensive, in-depth 1:1 coaching? Fill out a new client inquiry form (limited spots available)Support the podcast by shopping my affiliate links and joining my Patreon communityHave a topic you'd like to request? Email me at claire@eatforendurance.comEnjoyed 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).

    Amanda Brooks on Ditching Diet Culture and Discovering What Her Body Can Do
  4. Aug 27

    Can You Trust AI for Nutrition Advice?

    AI is everywhere these days and more and more people are turning to ChatGPT and other AI tools for nutrition and fueling advice. While AI can be incredibly useful for things like brainstorming meal ideas or collecting general nutrition information, it's not a substitute for individualized nutrition or medical advice. In episode 144 of The Eat for Endurance Podcast, Sports Dietitian Jessica Isaacs, MS, RDN, joins me to talk about AI and nutrition, including: Why athletes are increasingly turning to AI for fueling guidanceWhat AI gets right (and wrong) when it comes to nutrition and healthUsing AI for general information versus individualized nutrition adviceHow to fact-check AI-generated informationPractical examples of when AI can be useful for active peopleWhy AI should be used alongside dietitians and other health professionals (not instead of)A big takeaway from this conversation is that AI can be helpful, but it shouldn't be your nutrition decision-maker.  Tune in to hear the full conversation! Links & Resources Follow Jessica on Instagram and visit her websiteRead the 2026 BMJ Open study,  2024 review on AI in nutrition research, and 2025 review on AI and dietetics that we discuss in this episode Support my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchaseJoin my membership, Fuel for Life Crew, for just $39/month (cancel anytime)Check out my free nutrition downloadsSupport the podcast by shopping all my affiliate links and joining my Patreon communityInterested 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.comEnjoyed 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).

    Can You Trust AI for Nutrition Advice?
  5. Aug 12

    7 Ways Sports Nutrition Has Changed Since I Started Podcasting

    Seven years ago, I hit publish on the very first episode of The Eat for Endurance Podcast. At the time, elite athletes weren't talking as openly about how they fueled for training and racing, and the sports nutrition product market was only a fraction of its current size.  In episode 143 of The Eat for Endurance Podcast, I reflect on 7 ways the sports nutrition world has shifted since I started my show back in 2019. I share the big themes I've observed, what I think we've gotten right, and where I think athletes should use caution. Here are the 7 topics I cover: How high-carb fueling became popular, and who may or may not benefitThe rise of individualized sweat sodium testing and all the hype surrounding electrolytesThe increase in REDS awareness and why that matters for athletesWhy creatine has become one of the most talked about supplements, and if you should take itThe protein boom and what you really need to know about this macroThe prevalence of GLP-1 meds and what this means for athletesHow athletes are talking about fueling more openly than ever beforeTo celebrate the podcast's 7-year anniversary, I'm offering something I've never offered before: one-off 1:1 Fueling Sessions (60 minutes each). If you've been looking for personalized nutrition guidance but aren't ready to commit to a full coaching program, this is a chance to get your questions answered and leave with practical, individualized recommendations. Only 7 sessions are available on a first-come, first-served basis. This is open to new or existing clients.  Thank you again for listening, sharing the podcast, and supporting Eat for Endurance over the past seven years. Here's to the next chapter! Links & Resources Book your 1:1 fueling session (60 minutes) (7 spots available)Join my membership, Fuel for Life Crew: 7 spots at 37% off your first month with code EFE37 at checkout (redeem by 8/31)Check out my free nutrition downloadsSupport the podcast by shopping all my affiliate links and joining my Patreon communityInterested in more 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.comEnjoyed 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).

    7 Ways Sports Nutrition Has Changed Since I Started Podcasting
  6. Jul 30

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

    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 importantDifferent fiber types and how much you should be eating each dayHow fiber supports gut health, blood sugar, heart health, and moreWhen to eat fiber and when to avoid it around training and racingWhat "fibermaxxing" is and if you should do itOur favorite high-fiber foods for athletesWhether fiber supplements and fortified foods have a place in your dietSpecial considerations for vegan and vegetarian athletesPractical ways to increase your fiber intake without upsetting your gutA 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 athletesSupport my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchaseJoin my membership, Fuel for Life Crew, for just $39/month (cancel anytime)Check out my free nutrition downloadsSupport the podcast by shopping all my affiliate links and joining my Patreon communityInterested 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.comEnjoyed 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).

    Fiber for Athletes: Timing, Gut Health & How Much You Need
  7. Jul 16

    Are GLP-1s Safe for Athletes?

    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 ageWhy under-fueling is still the primary issue for many athletesWho should (and shouldn't) consider these medicationsPotential risks of GLP-1 use, including lean body mass loss and GI distressPotential benefits to inflammation, autoimmune conditions, gut health, and moodNutrition and supplement strategies when appetite is lowerDosing and microdosing for therapeutic use, not just weight lossWhy athletes cycle on and off GLP-1s, including around race trainingJenn's own story: early menopause, a cardiovascular family history, and how a short course of GLP-1s changed her health and performanceJenn'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 purchaseJoin my membership, Fuel for Life Crew, for just $39/month (cancel anytime)Check out my free nutrition downloadsSupport the podcast by shopping all my affiliate links and joining my Patreon communityInterested 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.comEnjoyed 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).

    Are GLP-1s Safe for Athletes?
  8. Jul 2

    Your Iron Questions, Answered: Everything Athletes Need to Know

    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 anemiaWho's most at riskCommon signs and symptoms of low iron and ferritinWhich blood tests to orderWhy "normal" lab values aren't always optimal What low ferritin but "normal" iron actually meansHow gut health as well as different foods influence iron absorptionHow much iron you need from food, plus meal/snack ideasWhen supplementation makes senseIron supplement timing and practical strategiesCallie'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 websiteSupport my sponsor Tailwind Nutrition: Use code EATFORENDURANCE20 for 20% off your first purchaseSupport 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 downloadsSupport the podcast by shopping all my affiliate links and joining my Patreon communityInterested 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.comEnjoyed 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).

    Your Iron Questions, Answered: Everything Athletes Need to Know
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About

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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