Brain fog, memory lapses, and trouble concentrating are often brushed off as stress or getting older. In this episode, I explain why that assumption can be dangerous.
Many of the cognitive symptoms people struggle with today are linked to silent nutrient deficiencies that go undetected for years. This conversation challenges the idea that mental decline is inevitable and reframes it as a correctable biological issue.

The Nutrient Gaps Affecting Memory and Cognition
In this episode, I walk through five critical nutrients that play a direct role in brain function, neurotransmitter balance, and inflammation control. He connects deficiencies in magnesium, vitamin D, B12, folate, and vitamin B6 to symptoms like brain fog, low mood, poor focus, and increased dementia risk.
The episode also highlights why standard lab ranges often miss these deficiencies and what markers actually matter.
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What Your Labs May Not Be Telling You
One of the most eye-opening parts of this episode is how often people are told their labs look “normal” while their brain symptoms worsen. I will explain optimal ranges versus conventional ranges and why early intervention matters. If you want to understand how nutrition, lab data, and cognitive health intersect, this episode delivers clarity without overwhelm.
- 00:00 Understanding B12 Deficiency in Aging
- 00:26 Introduction to Nutrient Deficiencies and Brain Health
- 06:20 The Importance of Magnesium for Brain Function
- 13:18 Optimizing Vitamin D Levels for Cognitive Health
- 17:59 The Critical Role of B12 in Brain Health
- 21:46 B12 Deficiency: A Widespread Issue
- 24:54 Causes and Risk Factors of B12 Deficiency
- 28:10 Optimal B12 Levels and Supplementation
- 32:25 Understanding Folate and Its Importance
- 38:15 Vitamin B6: Functions and Deficiency Signs
- 42:56 Conclusion and Final Thoughts
- 54:20 Faith and Health: A Holistic Approach
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Resources:
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Connect with Dr. Jockers:
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- If you are interested in being a guest on the show, we would love to hear from you! Please contact us here!
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