When cellular energy production is impaired, no diet, supplement, or health protocol can work as intended.

In this episode, Dr. Chris Masterjohn, nutrition scientist and expert in micronutrients and metabolism, explains why mitochondrial function is the limiting factor behind stalled progress, persistent fatigue, and supplements that stop working over time.

He breaks down why vitamin D supplementation often creates new problems when it is taken without proper nutrient balance, how high doses can disrupt other systems in the body, and why sunlight has biological effects that vitamin D pills alone cannot replicate.

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This conversation explores:

Why mitochondrial bottlenecks explain most energy and health plateaus

How micronutrient deficiencies undermine supplements and biohacks

When creatine supports cellular energy and why it works differently than most supplements

Why vitamin D supplementation can backfire without context and balance

Why sunlight affects biology in ways supplements cannot replace
How diet, fasting, and exercise interact with mitochondrial capacity
Why optimizing one system often breaks another without proper foundations

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Learn more about Dr Chris Masterjohn’s work:

Website: https://www.chrismasterjohn-phd.com/Instagram: https://www.instagram.com/chrismasterjohn/YouTube: https://www.youtube.com/@chrismasterjohn

Dr. Chris Masterjohn, PhD - Mitochondria, Micronutrients, and How Nutrition Actually Drives Longevity

Longevity Optimization with Kayla Barnes-Lentz