Nutritional Revolution Podcast

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In episode #178 we spoke with Tim Tollefson, pro ultra runner and RD and founder of mammoth trailfest and TheMammoth 200 about:
His path as a pro runner
The evolving landscape of trail events
The significance of volunteerism, community engagement, and sustainable growth in trail running
Practical advice on altitude adaptation, nutrition strategies
How we can help grassroots races thrive sustainably.
An appreciator of the imperfect, our next guest Tim Tollefson believes that access to the outdoors is essential for community health and that our next step, no matter the size, should be taken together. He is founder and head crafter of the mammoth trailfest, one of the country’s largest trail running events - and largest 50k - that was created to offer opportunity, access, and education through running. He is also the race director of The Mammoth 200, which will launch its second class of finishers in 2026 after a successful inaugural year in 2025. Tim is also a professional runner for Craft Sportswear, 3x USATF Trail National Champion, 2x Olympic Trails Marathon Qualifier, advocate for mental illness awareness, and an orthopedic physical therapist. His advocacy extends also into being a member of the boards of both Runners for Public Lands and the Professional Trail Runners Association. Tim and his wife Lindsay live in Mammoth Lakes, and are parents to Nacho, a rollicking 12lb doodle.
Please note that this podcast is created strictly for educational purposes and should never be used for medical diagnosis or treatment.
MENTIONED:
Runners for Public Lands: https://runnersforpubliclands.org/
mammoth trailfest: www.mammothtrailfest.com
TheMammoth 200: www.themammoth.com
GU Roctane Drink Mix: https://amzn.to/4bT5w1u
NSF/Safe for Sport Supplements: https://us.fullscript.com/welcome/kchannell
Check your Meds: https://www.globaldro.com/Home
RESOURCES:
FREE RECOVERY GUIDE
Nutrition for Altitude Mini Course (use code NEWPOD10 for 10% off)
FOLLOW TIM:
IG: @timtollefson
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Apply to work with Kyla → https://p.bttr.to/3ZrwzcF
Use code NEWPOD10 for 10% off our meal plans → https://nutritional-revolution.com/products/
CONNECT 
Instagram → www.instagram.com/nutritionalrevolution
Sponsorship inquiries → [email protected]
Interested in having your biomarkers or nutrigenomics checked? Email us at [email protected] 
TRUSTED RESOURCES 
Supplements (save 20%) → https://us.fullscript.com/welcome/kchannell
Feed Club ($20 off) → https://thefeed.com/teams/nutritional-revolution
Kyla's top picks → https://shopmy.us/shop/nutrev
Follow us @nutritionalrevolution

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In episode #178, we spoke with Dr. Trent Stellingwerff and Susan Boegman about their groundbreaking research on ultra endurance athletes, featuring unprecedented data on female participants. Discover how energy expenditure, nutrition, biomechanics, and recovery strategies come together in one of the most comprehensive multi-disciplinary studies in endurance sports.
In this episode:
The physiological and psychological effects observed during extended endurance events
Unique findings on body comp changes, neuromuscular fatigue, and hydration dynamics
Implications for athletes, coaches, and sports scientists supporting ultra endurance performance
Resources & Links:
More about the study:https://pubmed.ncbi.nlm.nih.gov/40257737/ 
https://www.ovid.com/journals/mespex/abstract/10.1249/01.mss.0001159044.49636.d4~ad-libitum-diet-energy-availability-body-composition-and 
https://run.outsideonline.com/road/inside-further-an-ultra-for-the-instagram-age/

Defining Taining and Performance Caliber: A Participant Classification Framework: https://journals.humankinetics.com/view/journals/ijspp/17/2/article-p317.xml
Oura Ring: https://amzn.to/4c0Tdjx
Lululemon Puffer Jacket: https://go.shopmy.us/p-50748716
Connect with the Researchers:
Trent Stellingwerff:LinkedIn: https://www.linkedin.com/in/trent-stellingwerf/
Google Scholar: https://scholar.google.com/citations?user=73zEx-QAAAAJ&hl=en
Upcoming Speaking Engagements:American College of Sports Medicine Conference, May 2026: https://acsm.org/events-general/annual-meeting/
International Society of Sport Nutrition, June 2026: https://www.sportsnutritionsociety.org/

Susan Boegman - CSIP
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Apply to work with Kyla → https://p.bttr.to/3ZrwzcF
Use code NEWPOD10 for 10% off our meal plans → https://nutritional-revolution.com/products/
CONNECT 
Instagram → www.instagram.com/nutritionalrevolution
Sponsorship inquiries → [email protected]
Interested in having your biomarkers or nutrigenomics checked? Email us at [email protected] 
TRUSTED RESOURCES 
Supplements (save 20%) → https://us.fullscript.com/welcome/kchannell
Feed Club ($20 off) → https://thefeed.com/teams/nutritional-revolution
Kyla's top picks → https://shopmy.us/shop/nutrev
Follow us @nutritionalrevolution

Send us Fan Mail
What you're about to listen to is something a little different.
This is not a traditional episode — it's an edited recording of an actual one-on-one coaching check-in with my client, Sarah Sturm, a professional athlete who recently found out she was pregnant.
After getting the news, Sarah approached me with an idea: she wanted to document her experience navigating pregnancy as a competitive athlete in real time, and she wanted to share it. So over five sessions, we hit record.
With Sarah's full approval and participation, we've taken those check-ins and edited them down into a 5 part series of ~20-minute mini episodes so you can follow along with her journey as it actually unfolded — unscripted and unfiltered.
In this series, you'll hear us cover:
Nutrition adjustments during early pregnancy for an active athlete
Managing performance, energy, and body changes
The mental and emotional side of pregnancy as a competitor
Real-time problem solving between coach and client
Please note: some portions of the original recordings have been removed for time or privacy. What you're hearing is a curated but authentic look at what real coaching support looks like during one of the most significant transitions an athlete can go through.
Thank you to Sarah for her openness and trust in sharing this with our community. 🤍
Importance of vitamin D for immune function and athletic performance, with optimal levels discussed
Supplementation strategies: vitamin D3/K2 combo, NAC for cold and flu prevention
Monitoring lab results: interpreting ferritin, vitamin D, and other biomarkers
Nutrition tips during pregnancy: incorporating eggs, yogurt, cottage cheese, and lean proteins
Managing fatigue and recovery after intense skiing sessions; signs of overtraining and growth spurts
Travel health protocols: probiotics (bacillus subtilis), Sacro B, and immune boosters before and during trips
The role of sun exposure, especially in winter, and supplementation when sun isn't sufficient
Hydration strategies: Tailwind, tart cherry, and minimizing sugary additives
Recognizing symptoms of illness: the benefits of hot showers or saunas for immune support
Managing headaches and migraines with magnesium
MENTIONED
vitamin c
zinc
vitamin d k12
momentous vitamin d3
Thorne flora sport
thorne sacro-b
tailwind
MORE NR
Apply to work with Kyla → https://p.bttr.to/3ZrwzcF
Use code NEWPOD10 for 10% off our meal plans → https://nutritional-revolution.com/products/
CONNECT 
Instagram → www.instagram.com/nutritionalrevolution
Sponsorship inquiries → [email protected]
Interested in having your biomarkers or nutrigenomics checked? Email us at [email protected] 
TRUSTED RESOURCES 
Supplements (save 20%) → https://us.fullscript.com/welcome/kchannell
Feed Club ($20 off) → https://thefeed.com/teams/nutritional-revolution
Kyla's top picks → https://shopmy.us/shop/nutrev
Follow us @nutritionalrevolution

Send us Fan Mail
What you're about to listen to is something a little different.
This is not a traditional episode — it's an edited recording of an actual one-on-one coaching check-in with my client, Sarah Sturm, a professional athlete who recently found out she was pregnant.
After getting the news, Sarah approached me with an idea: she wanted to document her experience navigating pregnancy as a competitive athlete in real time, and she wanted to share it. So over five sessions, we hit record.
With Sarah's full approval and participation, we've taken those check-ins and edited them down into a 5 part series of ~20-minute mini episodes so you can follow along with her journey as it actually unfolded — unscripted and unfiltered.
In this series, you'll hear us cover:
• Nutrition adjustments during early pregnancy for an active athlete
• Managing performance, energy, and body changes
• The mental and emotional side of pregnancy as a competitor
• Real-time problem solving between coach and client
Please note: some portions of the original recordings have been removed for time or privacy. What you're hearing is a curated but authentic look at what real coaching support looks like during one of the most significant transitions an athlete can go through.
Thank you to Sarah for her openness and trust in sharing this with our community. 🤍
Mentioned in this episode:
Designs for Health Prenatal Pro
Thorne 
Momentous Omega-3
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Apply to work with Kyla → https://p.bttr.to/3ZrwzcF
Use code NEWPOD10 for 10% off our meal plans → https://nutritional-revolution.com/products/
CONNECT 
Instagram → www.instagram.com/nutritionalrevolution
Sponsorship inquiries → [email protected]
Interested in having your biomarkers or nutrigenomics checked? Email us at [email protected] 
TRUSTED RESOURCES 
Supplements (save 20%) → https://us.fullscript.com/welcome/kchannell
Feed Club ($20 off) → https://thefeed.com/teams/nutritional-revolution
Kyla's top picks → https://shopmy.us/shop/nutrev
Follow us @nutritionalrevolution

Send us Fan Mail
What you're about to listen to is something a little different.
This is not a traditional episode — it's an edited recording of an actual one-on-one coaching check-in with my client, Sarah Sturm, a professional athlete who recently found out she was pregnant.
After getting the news, Sarah approached me with an idea: she wanted to document her experience navigating pregnancy as a competitive athlete in real time, and she wanted to share it. So over five sessions, we hit record.
With Sarah's full approval and participation, we've taken those check-ins and edited them down into a 5 part series of ~20-minute mini episodes so you can follow along with her journey as it actually unfolded — unscripted and unfiltered.
In episode 3 we cover:
How to determine personalized daily water or fluid intake, especially for pregnant athletes
Impact of exercise and environmental factors on hydration needs
Understanding ferritin and hemoglobin levels during pregnancy and their significance
Managing micronutrient supplementation, including prenatals, iron, choline, and biotin
Effects of pregnancy on food preferences and aversions
The importance of women supporting women
Practical tips for balancing hydration, nutrition, and exercise during pregnancy
Please note: some portions of the original recordings have been removed for time or privacy. What you're hearing is a curated but authentic look at what real coaching support looks like during one of the most significant transitions an athlete can go through.
Thank you to Sarah for her openness and trust in sharing this with our community. 🤍
Mentioned
hDrop: https://hdroptech.com/ref/83/Use code HDROPNR to save 20%!

Expecting Better by Emily Oster: https://amzn.to/4lptlCd
Nordic Naturals Prenatal DHA: https://nutritional-revolution.com/product/nordic-naturals-prodha/
Designs for Health Prenatal Pro: https://nutritional-revolution.com/product/designs-for-health-prenatal-pro/
The Womanly Art of Breastfeeding: https://amzn.to/3NCge4f
Inside Tracker - Personalized Nutrition Tracking: Email [email protected] if you're interested in getting discounted lab testing!
MORE NR
Apply to work with Kyla → https://p.bttr.to/3ZrwzcF
Use code NEWPOD10 for 10% off our meal plans → https://nutritional-revolution.com/products/
CONNECT 
Instagram → www.instagram.com/nutritionalrevolution
Sponsorship inquiries → [email protected]
Interested in having your biomarkers or nutrigenomics checked? Email us at [email protected] 
TRUSTED RESOURCES 
Supplements (save 20%) → https://us.fullscript.com/welcome/kchannell
Feed Club ($20 off) → https://thefeed.com/teams/nutritional-revolution
Kyla's top picks → https://shopmy.us/shop/nutrev
Follow us @nutritionalrevolution