Top 8 Signs of a Vitamin B12 Deficiency and How to Fix It

Top 8 Signs of a Vitamin B12 Deficiency and How to Fix It

Author: Dr. Jockers August 21, 2026 Duration: 18:00

In this episode, Dr. Jockers breaks down the common and often overlooked signs of vitamin B12 deficiency, including fatigue, brain fog, nerve pain, premature graying, and sulfite sensitivity. You'll learn why B12 is so important for your nervous system, red blood cells, detoxification, and neurotransmitter production.

 

You'll discover why a B12 result that falls within the standard lab range may not tell the whole story. Dr. Jockers explains additional markers he considers, including homocysteine and red blood cell measurements, and what they can reveal about B12 status.


You'll also learn what can contribute to low B12, including diet, chronic stress, certain medications, and poor stomach acid production. Plus, Dr. Jockers shares the food sources and forms of supplementation he recommends for supporting healthy B12 levels.

 

In This Episode: 

00:00 Sulfite Sensitivity Clue

00:18 Welcome and Episode Overview

00:53 Reviews and Coaching Info

03:37 Top B12 Deficiency Signs

04:35 Lab Ranges and Hidden Deficiency

05:57 Little Known Symptoms

07:03 Why B12 Matters in the Body

08:06 Blood Markers to Check

11:32 Homocysteine and Glutathione

12:06 Best Food Sources of B12

12:51 Common Causes of Low B12

14:08 Absorption Issues and Intrinsic Factor

15:05 Best B12 Supplements and Forms

16:35 Testing and Final Takeaways

17:07 Closing and Next Steps

 

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"Brain fog, anxiety, and depression can all be connected to inadequate B12." 

~ Dr. Jockers

 

 

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Resources:

  • Visit https://pureance.com and get 35% off with code JOCKERS at checkout.

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Connect with Dr. Jockers:

If you are interested in being a guest on the show, we would love to hear from you! Please contact us here! - https://drjockers.com/join-us-dr-jockers-functional-nutrition-podcast/ 


Tune into Dr. Jockers Functional Nutrition for conversations that bridge the gap between complex science and practical, daily health choices. Hosted by Dr. David Jockers, a Doctor of Natural Medicine and Functional Nutritionist, this podcast delves into the underlying causes of health challenges rather than just treating symptoms. You’ll hear detailed discussions on metabolic flexibility, the intricacies of gut health, and sustainable methods for reducing systemic inflammation. Dr. Jockers draws from his clinical experience and research, which has been featured in media like ABC and The Dr. Oz Show, to break down strategies for improving brain function, supporting the immune system, and achieving natural detoxification. Each episode is built on a foundation of evidence, yet presented in a way that feels accessible, whether you're deeply invested in fitness or simply seeking a more vibrant life. The focus here is on providing actionable knowledge-the kind that empowers you to make informed decisions about nutrition and lifestyle. This isn't about quick fixes; it's about understanding how your body works and learning the principles that can help it thrive for the long term.
Author: Language: English Episodes: 50

Dr. Jockers Functional Nutrition
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