Valley to Peak Nutrition Podcast

50K to the Stage: Marshal Whitaker on Teachability, losing 30lb, and changing his life

 
In this episode, Kyle sits down with Marshal Whitaker of Argali Outdoors. Marshal’s story is a fascinating look at what happens when elite endurance goals meet a newfound dedication to metabolic science. Having recently conquered a 50K ultra marathon while losing 30lbs, Marshal is now shifting his sights to the bodybuilding stage.
Episode Highlights
The "Busy" Factor: Why staying active is Marshal’s #1 tool for managing hunger in a deficit.
The Power of Coachability: Marshal discusses "swallowing his pride" and moving away from a restricted "chicken and broccoli" mindset to a flexible, macro-based approach.
Performance vs. Weight Loss: How Marshal successfully increased his running mileage while simultaneously shedding weight—disproving the myth that you can’t do both.
Volume Eating: The "magic" of frozen Potatoes O’Brien and how to eat full plates of food while staying in a caloric deficit.
The Support System: How Marshal’s transformation sparked a fitness journey for his wife, turning their home gym into a hub of mutual accountability.
Training in Quarters: Kyle breaks down the philosophy of dividing the year into four distinct focuses to prevent burnout and "wanting it all at once."
Key Takeaways
"I thought I would always feel fatigued and hungry... but I’m eating sandwiches with grilled onions and fitting it into my macros. My understanding of food has completely changed." — Marshal Whitaker
Resources & Links Mentioned
Argali Outdoors: argalioutdoors.com – High-performance gear for backpack hunters.
Marshal on IG
Valley to Peak Nutrition: Valley to Peak Nutrition – Search the full archive of episodes from #1 to the present and all of our resources. 
Connect with the Show
Follow Kyle on Instagram: [@V2pnutrition]
Subscribe on Spotify & Apple Podcasts: Search "Valley to Peak Nutrition" (Note: On Spotify, episodes currently start at #20, but the full library is available on the website!)

FAQ: Fasted cardio, nutrition for longevity, and the Fiber "Cocklebur" Effect (W/ Lindsay)

Why does weight loss stall even when you count your drinks? Plus, the truth about fasted cardio and staying active in your 70s. Let’s dive in!
Episode Summary: In this listener Q&A episode, we tackle the nuance of nutrition that goes beyond simple "calories in vs. calories out." We discuss why alcohol can halt weight loss despite a calorie deficit , whether fasted cardio actually burns more fat , and how to adjust your diet as you enter your 50s, 60s, and 70s. We wrap up with a masterclass on fiber—explaining why it’s the most overlooked tool for heart health and cancer prevention.
Key Takeaways:
The Alcohol Variable: Why the body prioritizes alcohol metabolism and how cellular inflammation causes water retention
Fasted Cardio Debunked: Why training on empty might actually be hindering your performance and metabolic flexibility.
Nutrition for Longevity: Addressing the "Front Porch" phase—how to maintain muscle mass and energy in your 70s.
Fiber 101: The difference between soluble and insoluble fiber and why "Keto-friendly" high-fiber wraps might be ruining your digestion.
Podcast Chapters (Timestamps)
00:00 – Welcome & Show Season Recap
04:30 – Does Alcohol Stop Weight Loss? (Beyond the Calories) 07:15– The Difficulty of Measuring Liquid Calories
10:45 – Fasted Cardio: Weight Loss Benefit or Performance Hindrance? 15:20 – Teaching Your Body to Use Fat as Fuel
18:50 – Nutrition for the 70+ Athlete: Staying Overlooked No More
22:15 – Why Energy Levels Drop: Hormones vs. Activity
26:40 – The Three Pillars of Aging: Energy, Health Markers, and Strength
31:10 – Fiber Intake: Are You Falling Short?
34:50 – The "Cocklebur" Effect: How Fiber Cleans Your System
38:20 – Soluble vs. Insoluble: Which Foods Do You Actually Need?
41:05– The Danger of Overdoing Fiber: Avoiding the "Keto Wrap" Trap
44:00 – Closing Thoughts & How to Submit Your Questions
 
Guest & Resource Links:
Submit Your Questions: info@v2pnutrition.com
Follow Valley to Peak: Valley to Peak Nutrition
 
Related Episode: When is too much meat too much?
 

Testosterone & TRT: Separating fact from fiction (W/ Dylon Sanford)

In a world where "optimization" is the new standard, where is the line between healthy hormones and chasing a number? In this episode, we sit down with Dyllon Sanford of Henderson Family Medicine to break down the state of men’s health in 2026.
We explore why testosterone levels are dropping in younger men, how to accurately read your lab results (Total vs. Free T), and the critical difference between medical intervention and natural optimization. From "gas station taquito" lifestyle traps to the long-term implications of TRT dependency, this is a no-nonsense guide for any man looking to reclaim his vitality without sacrificing his long-term health.
 
Valley to Peak 8-Week Challenge
GLP-1 Podcast

Trail Q&A: lower protein intakes, not bonking on 9-day expeditions and hunts, plus stable protein ideas for the trail and hiking

Check out more from Valley to Peak Nutrition here!
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"If today’s deep dive into mastering your 'Trail Q&A'—from navigating lower protein intakes to staying fueled for those grueling nine-day expeditions—helped you rethink your backcountry strategy, we’d love to stay connected. Head over to our search page for our a full list of options and reviews to learn more. If you’re finding value in these trail-tested tips, please take a moment to leave us a review on Apple Podcasts or Spotify. Your feedback is the fuel that helps us grow and ensures other mountain athletes and hunters can find their way from the valley to the peak."

Unstoppable at 45: Crushing goals when the world says you should be slowing down.

Think your best life is behind you once over the hill? Becki Honner is here to prove otherwise. At 45 and a mom of four, Becki was told that "age and hormones" were the new bosses of her biology. She decided not to listen. Instead, she teamed up with us to be at a composition she envisioned and hit performance peaks she hadn't seen in years. In this episode, we’re dispelling the midlife excuses and diving into the exact mindset shift Becki used to reclaim her strength and silence the skeptics. 
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Check out more resources from Valley to Peak.
Take our 8-Week Challenge.
 

Hunt Expo + Toughbuck/Toughsheep nutrition (plus gear to keep your eye out for and more)

We're back from a ton of travel and being a part of Toughsheep and Touchback in Reno and SLC.  We have had a ton of questions about how to fuel for events like this, so we dive into that in this episode.  We also cover products worth keeping your eye out for that are releasing soon and how to not get confused by ALL the supplement companies at shows like this. 
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Roughridge Stove
MTNTOUGH
Exo Mtn Gear- K4X- coming soon + alert sign up. 
Valley to Peak Nutrition 

Sayonara bars; meet pouches to fuel your adventures (w/ Founder of Neve, Nora Fierman)

I sit down with the founder of Neve, Nora Fierman to chat all things about opening a small business, time in the backcountry, and why smoothies are the wave of the future for fueling backcountry adventures.  
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Find Nora and Neve here. 
More from Valley to Peak. 

FAQ: Differences between carbs in fueling mixes, hydrogen water, how long should recovery actually take?

Grab your carbohydrate fueling guide download here. 
Check out other resources (and our revamped website) here. 
More from Summit Strength here. 

Nutrition for our Kids- your questions answered

Thanks for listening!  Check out more from V2P here. 
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Ellyn Satter Division of Responsibility
Andy Galpin on Training and Movement in Kids

FAQ: New dietary guidelines, HIIT vs Z2 for weight loss, creatine alone to build more capable muscles, and lower thresholds for macros.

FAQ: Sharing a summary + my thoughts on the new dietary guidelines- which are quite the shift from we had previously had.  We also check out questions on: 
Is HIIT better for fat loss than zone 2 cardio?
Are there lower thresholds for carbs, fats, or proteins that we should avoid?
Will creatine alone build a bigger muscle?
Dietary guideline information for you to look at. 
Research on Z2 vs HIIT. 
Conversation w/ Cardiologist Matt Nelson: "Is there such a thing as too much exercise for the heart?"
More information about Valley to Peak + Resources for you to use!