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October 15, 2025 46 mins

In this episode of the Human Performance Outliers Podcast, Zach Bitter is joined by performance nutritionist Dr. Marc Bubbs to discuss the intricacies of optimizing energy through nutrition. Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition. They cover various key topics including the importance of magnesium, its intake, absorption, and how lifestyle factors like stress and diet affect it. They also delve into other essential micronutrients like B12, folate, and CoQ10, discussing their roles in energy production, recovery, and athletic performance. The conversation offers practical insights into how diet and selective supplementation can enhance overall health and performance. 

Endurance Training Simplified Series

ProBio: probionutrition.com Code: Endurance (20% Off)

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

deltaG: deltagketones.com Code: BITTER20 (20% Off)

Training Peaks: trainingpeaks.com/hpopodcast (free 14-day trial)

Support HPO: zachbitter.com/hposponsors

HPO Website: zachbitter.com/hpo 

Zach’s Coaching: zachbitter.com/coaching

Zach’s Journal: substack.com/@zachbitter

Find Zach: zachbitter.com | IG: @zachbitter | X: @zbitter | FB: Zach Bitter | Strava: Zach Bitter

Dr. Marc Bubbs: drbubbs.com | IG: @drbubbs | X: @drbubbs

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