Hair follicles are among the most metabolically active cells in the body, and their high cell turnover rate makes them sensitive to any nutritional imbalance
Practical Takeaways Recognize that intrinsic factor is essential for B12 absorption and cannot be replaced by dietary changes alone Understand that conditions affecting parietal cells can lead to B12 deficiency regardless of dietary intake Consider B12 monitoring in patients with gastric surgery, autoimmune conditions, or chronic PPI use Be aware that oral B12 supplements may be ineffective in intrinsic factor deficiency Appreciate that B12 deficiency can develop slowly and cause subtle neurological symptoms before anemia appears Consider alternative B12 delivery methods (sublingual, injectable) when intrinsic factor deficiency is suspected Related Studies and Research Vitamin B12 Intake From Animal Foods, Biomarkers, and Health Aspects Physiology, Stomach Pharmacology of Proton Pump Inhibitors Use of Proton Pump Inhibitors and Risk of Iron Deficiency: Population-Based Study Episode 25: The Great GERD Mistake - How Medicine Made Heartburn Worse and How to Fix It FAQs What happens if I dont have enough intrinsic factor
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Its hard to remember to take multivitamins every day, and its kind of counter-intuitive if you dont know what vitamins you actually need
Whether youre dealing with fatigue, brain fog, stress, or simply want to optimize your wellness, well help you identify the right mix of nutrients for your body
Jas et al., 2015)
