The Running Explained Podcast

A single ferritin test isn't the whole story. Coach Nick and Coach Amanda talk with sports dietitian Callie Roseland about the difference between low ferritin, iron deficiency, and anemia, why runners are especially prone to running low, and the ferritin number that actually supports performance versus the number that just clears a lab's "normal" range.

We also cover when to (and definitely not to) get iron labs drawn, how hard training affects iron absorption through a hormone called hepcidin, and why more iron isn't always better.

Guest

Callie Roseland, MS, RD, LDN, CSSD, IFNCP, EP-C is a Sports Dietitian who specializes in helping endurance and mountain athletes fuel for performance, recovery, and long-term health. She has 9+ years of experience in high-level performance nutrition, including more than 7 years as a Tactical Performance Dietitian supporting U.S. Special Operations Forces within a multidisciplinary human performance team.

Through her private practice, Fueling Upward, Callie works with adult athletes who lift, run, and climb mountains while balancing serious training with full-time work, family, and real life. Her background in exercise physiology, sports nutrition, and integrative and functional nutrition allows her to take a comprehensive approach to performance, with particular interests in endurance fueling, performance labwork, gut health, hormone health, injury recovery, and optimizing nutrition to support high-level training and performance.

Fueling Upward offers 1v1 virtual nutrition coaching, group education, and on-demand resources to help athletes have more energy, ditch gut issues, and fuel the training it takes to cross finish lines and climb mountains.

Email: callie@fuelingupward.com

IG: @fueling.upward.rd

Website: www.fuelingupward.com

Reach out via email at hello@runningexplained.com

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Strength training gets thrown around as a cure-all for runners: fix your injury, run faster, never break down. Coach Nick and Coach Amanda sit down with Natalie LaMendola, DPT, a running-specific physical therapist and Running Explained coach, to separate what strength training actually does for runners from what the internet claims it does.

We cover the exact framework Natalie uses with runners (squat, hinge, push, pull, carry), how to know if your program is even working, the real reasons runners skip strength work, and what changes once you hit master's age. We also get into why strength training is not a quick fix for an injury, no matter what your Instagram feed says.

In this episode

• What actually counts as strength training (and what doesn't)

• Why strength training improves running economy and tissue durability

• The squat, hinge, push, pull, carry framework for building a session

• How many heavy compound lifts, single leg exercises, and plyometrics you actually need

• The weekly benchmarks that tell you your program is working

• The real barriers keeping runners out of the weight room, and how to work around them

• Strength training for master's runners: consistency, calf work, and tendon health

• Do men and women need different strength programs? (Mostly no, with one hormonal exception)

• Why strength training won't fix an active injury, and what it actually does instead

About our guest Natalie is a running-specific Doctor of Physical Therapy and certified run coach based in Kansas City. When she's not working with runners in the clinic, you can find her chasing her own goals on the run alongside her husband, twin toddlers, and hound dog. Her passion lies in helping runners of all abilities achieve their goals and get back to the miles they love.

Find Natalie: lamendolapt.com or on Instagram @runwithnat_dpt

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The 60g-an-hour carb ceiling isn't real, it was just the limit of one transporter. Sports dietitians Emma Harvie and Jaclyn Sklaver, CNS, LDN, join Coach Nick and Coach Amanda to explain the glucose plus fructose fueling strategy pushing runners past 90 to 120 grams of carbs an hour, why underfueling wrecks your hormones (yours included, men), and how to build a fueling plan months before race day instead of the week of.

Topics covered

• The real science behind the 90 to 120g/hour carb range

• Glucose vs. fructose absorption pathways, explained simply

• Gut training for race day fueling

• Low energy availability and the "low T diet"

• Hormones, iron, and fat intake in endurance athletes

• Refueling after long runs even without an appetite

Guests: Jaclyn Sklaver, CNS, LDN (Athletes Nutrition / Athleats) and Emma Harvie (board certified nutrition specialist).

Jaclyn Sklaver, MS, CNS, LDN, is a board-certified integrative sports nutritionist and founder of Athleats Nutrition, where she works with active gym-goers, competitive athletes, and everyday clients seeking sustainable performance and body composition results. Drawing on a functional medicine approach, Jaclyn goes beyond calories and macros to address the root causes behind plateaus, fatigue, and stalled progress, from gut health and hormone balance to inflammation and recovery. Her personalized nutrition programming has supported some of the world's top athletes, including professionals in the NBA and NFL, alongside a wide range of committed gym-goers looking to train harder, recover faster, and feel better in their bodies. With over a decade of clinical experience, Jaclyn pioneered the private-practice model in sports dietetics and continues to bridge performance nutrition with whole-body, functional care.

Emma Harvie, MS, CNS, LN, is a Licensed Nutritionist and Board Certified Nutrition Specialist specializing in functional medicine and sports performance nutrition. She brings a lifelong history of athletics to her clinical work, including as a former professional bodybuilder and current avid CrossFit athlete. Born and raised in Duluth, Minnesota, Emma has run Grandma's Half Marathon every year since she was 15 years old, now an 18 time finisher and one of her favorite hometown traditions. Drawing on her firsthand understanding of what the body demands under training and competition, she works with clients using a practical, realistic, and root cause approach, building highly personalized nutrition strategies that recognize the unique needs and lifestyle of each individual patient. Emma has had the privilege of working with NBA players, celebrities, and elite, collegiate, and Olympic athletes to reach their health and performance goals. She loves helping clients overcome barriers to health to achieve meaningful, sustainable, and lifelong improvements in well-being.

Hosted by Coach Nick and Coach Amanda for Running Explained.

CONNECT WITH RUNNING EXPLAINED

● Website: runningexplained.com

● Instagram: @running.explained @amanda.katzz

Runners are great at ignoring pain. That is exactly the problem. In this episode, physical therapist Dr. Lisbeth Hoyt joins Coach Nick and Coach Amanda to break down bone health, the injury continuum, and how to actually catch a bone stress injury before it becomes a 12-week stress fracture.We get into why women are not small men, how hormonal shifts across your life (adolescence, postpartum, perimenopause, menopause) change your risk, and why the least exciting habits (strength, fuel, sleep) are the ones that keep you running. If you have ever pushed through a nagging shin or told your doctor you "jog occasionally," this one is for you.

IN THIS EPISODE

● Why bone is a living, dynamic tissue, and how running builds it stronger

● The number one warning sign that shows up BEFORE the aches and pains

● How to tell a normal bad run from an early bone stress injury

● Why running-specific PT matters, and how to advocate for yourself

● The life stages when women need to train and fuel differently

● The three "boring" basics that prevent most injuries: strength, nutrition, sleep

TIMESTAMPS

00:00 Welcome and introductions

00:26 Meet Dr. Lisbeth Hoyt, PT (and the fitness enthusiast title)

04:18 Today's topic: starting with bone health

05:09 Bone as living tissue: how it breaks down and rebuilds

07:00 Why male-centric research fails female runners

07:56 Nutrition habits that build bone early in life

11:52 The injury continuum: early warning signs runners dismiss

15:07 Why runners swing between panic and pushing through

17:51 Running-specific PT vs. generic PT, and advocating for yourself

21:56 Why we keep you running instead of shutting you down

25:07 The comprehensive intake: sleep, stress, nutrition, life load

30:32 The biggest red flags: sleep and nutrition

32:34 Life stages that demand more intention around bone health

37:00 Perimenopause, misdiagnosis, and the research gap

39:48 Training through pregnancy and the postpartum rush back

42:00 Why postpartum needs strength, pelvic floor PT, and honest expectations

45:10 The three things to start today: strength, nutrition, sleep

49:27 Rapid-fire questions with Dr. Hoyt

52:30 Where to find Dr. Hoyt and work with her

CONNECT WITH DR. LISBETH HOYT

Lisbeth is a running specialized physical therapist at Custom Performance, a Certified Strength and Conditioning Specialist, RRCA-certified running coach, and certified mat Pilates instructor. She's been working exclusively in the running world at Custom Performance for the past 10 years. Lisbeth has been a lifelong athlete who found her way to distance running following the end of organized team sports (aka college graduation).As a physical therapist Lisbeth believes running should be fun and part of a balanced, active lifestyle, and meets each client where they are in their running journey. Her goal is to help runners build the strength, movement skills, and confidence they need to keep doing what they love.Lisbeth is a 4 time marathoner, many times half marathoner and a mom of 2 toddlers which requires more energy than any race she's run before.

● Custom Performance, Midtown Manhattan (41st and Madison)

● Email: lisbeth@nycustompt.com | Front desk: info@nycustompt.com

● Free phone consults available

● Instagram: @lisbethh.jennings

CONNECT WITH RUNNING EXPLAINED

● Website: runningexplained.com

● Instagram: @runningexplained @amanda.katzz

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Running one marathon used to be the whole goal. Now it’s normal to stack two or three in a single fall, chase every world major, and call the easy one “party pace.” This week Coach Nick and Coach Amanda sit down with New York marathon coach Corky (@CoachCorkyRuns) to ask how many marathons is actually too many. We get into what the research says about performance and mental health, why party pacing rarely works the way runners think, the REDs and rhabdo reality behind the highlight reel, and what real recovery looks like. It’s a love letter to the marathon and to your long-term relationship with it.

WHAT WE COVER

• How marathon culture changed, and why stacking races got normal
• How many marathons a year is actually too many
• The “Berlin goal, NYC party pace” trap and who it really works for
• What party pace actually costs your body
• REDs, rhabdo, and the toll behind the highlight reel
• What real marathon recovery looks like, day by day
• Fueling your race to protect your recovery
• The questions to ask if you’re chasing likes instead of the goal
• Building a running life that lasts decades, not seasons

TIMESTAMPS

00:00 Welcome and meet Coach Corky

01:11 Who is Coach Corky

04:45 How marathon culture changed over the last decade

06:34 Why the marathon became “the event”

08:32 Social media, algorithms, and FOMO

10:15 What the research says: 2 to 3 marathons a year

11:01 The “Berlin goal, NYC party pace” trap

15:04 Intention vs impact

16:46 Love of running vs external validation

18:44 Why pros can stack races and most runners can’t

21:04 What “party pace” really means (and fueling for it)

23:03 The influencer highlight reel: REDs, rhabdo, and what you don’t see

25:26 The hidden mental toll of chasing marathons

28:17 Mental recovery and the marathon hamster wheel

31:45 What good marathon recovery actually looks like

34:30 Reintroducing running and the reverse taper

35:04 Muscle memory, a 31-mile run, and fueling for recovery

37:33 Training your gut and fueling for longevity

38:45 Staying flexible: adjust your calendar, respect the big picture

40:30 Questions to check your real motivation

43:30 Why DNS and DNF should always be options

44:03 Racing for yourself vs racing for the feed

46:31 Building a lifelong relationship with running

48:25 Super secret guest interview questions

51:03 Where to find Coach Corky

51:54 Wrap-up

Corky has been coaching and supporting runners since 2014, when she launched Coach Corky Runs. Her favorite distance to coach and race is the marathon, though she has extensive experience on the roads from the 5K through Ultra distances. While Corky coaches clients virtually anywhere in the USA, in person she's made a name for herself in the treadmill group fitness world. She was a full time coach at Mile High Run Club from 2015-2019, and joined Precision Run at Equinox in 2019, and is still currently coaching in person in NYC. She's also one of the Precision Run coaches on the Equinox+ app, guiding members through treadmill and outdoor programs. Corky is still competing, and while she loves to race, her favorite part of being a runner is truly the training. coachcorkyruns.com, @CoachCorkyRuns on Instagram and Threads, and teaching at Equinox NYC.

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