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  
Podcast: Dr. Jockers Functional Nutrition
Published On: Fri Aug 21 2026
Description: 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   If you're tired of thin, lifeless hair, Hydra Lift Volumizing Shampoo by Pureance can help strengthen and restore your hair's appearance. Formulated with wheat protein to support stronger-looking hair follicles and betaine from sugar beets to help hydrate strands, it helps transform dry, brittle hair into fuller, more resilient locks. Try Hydra Lift risk-free and save 35% on your entire order with code JOCKERS at pureance.com.   MasterClass keeps adding new classes, so there's never been a better time to get in. Right now, as a listener of this show, you get at least 15% off any annual membership at MASTERCLASS.com/DRJOCKERS. That's 15% off at MASTERCLASS.com/DRJOCKERS. Head to MASTERCLASS.com/DRJOCKERS to see the latest offer!   "Brain fog, anxiety, and depression can all be connected to inadequate B12."  ~ Dr. Jockers     Subscribe to the podcast on: Apple Podcast Stitcher Spotify PodBean TuneIn Radio     Resources: Visit https://pureance.com and get 35% off with code JOCKERS at checkout. Get 15% off at MASTERCLASS.com/DRJOCKERS     Connect with Dr. Jockers: Instagram – https://www.instagram.com/drjockers/ Facebook – https://www.facebook.com/DrDavidJockers YouTube – https://www.youtube.com/user/djockers Website – https://drjockers.com/ 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/