Why would my B12 be so low? My B12 likes to hover in the mid 200's to mid 300's. Im not looking for treatments on this forum, more like 'Hey! I had
![Biochemical and Hematologic Manifestations of Gastric Intrinsic Factor (GIF) Deficiency: A Treatable Cause of B12 Deficiency in the Old Order Mennonite Population of Southwestern Ontario. - Abstract - Europe PMC Biochemical and Hematologic Manifestations of Gastric Intrinsic Factor (GIF) Deficiency: A Treatable Cause of B12 Deficiency in the Old Order Mennonite Population of Southwestern Ontario. - Abstract - Europe PMC](https://europepmc.org/articles/PMC4361928/bin/330197_1_En_351_Fig1_HTML.jpg)
Biochemical and Hematologic Manifestations of Gastric Intrinsic Factor (GIF) Deficiency: A Treatable Cause of B12 Deficiency in the Old Order Mennonite Population of Southwestern Ontario. - Abstract - Europe PMC
![Absorption of Radioactive Vitamin B12 after Total Gastrectomy — Relation to Macrocytic Anemia and to the Site of Origin of Castle's Intrinsic Factor | NEJM Absorption of Radioactive Vitamin B12 after Total Gastrectomy — Relation to Macrocytic Anemia and to the Site of Origin of Castle's Intrinsic Factor | NEJM](https://www.nejm.org/na101/home/literatum/publisher/mms/journals/content/nejm/1954/nejm_1954.251.issue-5/nejm195407292510501/20130802/images/img_medium/nejm195407292510501_t4.jpeg)
Absorption of Radioactive Vitamin B12 after Total Gastrectomy — Relation to Macrocytic Anemia and to the Site of Origin of Castle's Intrinsic Factor | NEJM
![Nutrients | Free Full-Text | Perspective: Practical Approach to Preventing Subclinical B12 Deficiency in Elderly Population | HTML Nutrients | Free Full-Text | Perspective: Practical Approach to Preventing Subclinical B12 Deficiency in Elderly Population | HTML](https://www.mdpi.com/nutrients/nutrients-13-01913/article_deploy/html/images/nutrients-13-01913-g001.png)
Nutrients | Free Full-Text | Perspective: Practical Approach to Preventing Subclinical B12 Deficiency in Elderly Population | HTML
![✓ Medical diagram of the cycle of vitamin B12 in the human body. premium vector in Adobe Illustrator ai ( .ai ) format, Encapsulated PostScript eps ( .eps ) format ✓ Medical diagram of the cycle of vitamin B12 in the human body. premium vector in Adobe Illustrator ai ( .ai ) format, Encapsulated PostScript eps ( .eps ) format](https://st4.depositphotos.com/2852841/40425/v/950/depositphotos_404251670-stock-illustration-medical-diagram-cycle-vitamin-b12.jpg?forcejpeg=true)
✓ Medical diagram of the cycle of vitamin B12 in the human body. premium vector in Adobe Illustrator ai ( .ai ) format, Encapsulated PostScript eps ( .eps ) format
![Absorption mechanism of vitamin B12 (based on Ref. [20]). Cobalamin... | Download Scientific Diagram Absorption mechanism of vitamin B12 (based on Ref. [20]). Cobalamin... | Download Scientific Diagram](https://www.researchgate.net/profile/Tatina-Todorova/publication/317146132/figure/fig2/AS:498201096011776@1495791805970/Absorption-mechanism-of-vitamin-B12-based-on-Ref-20-Cobalamin-Cbl-is-released.png)
Absorption mechanism of vitamin B12 (based on Ref. [20]). Cobalamin... | Download Scientific Diagram
![Pictorial representation of the absorption of vitamin B 12 (cobalamin).... | Download Scientific Diagram Pictorial representation of the absorption of vitamin B 12 (cobalamin).... | Download Scientific Diagram](https://www.researchgate.net/profile/Michael-Shipton-2/publication/274317369/figure/fig1/AS:601770225061905@1520484610472/Pictorial-representation-of-the-absorption-of-vitamin-B-12-cobalamin-Dietary-vitamin-B.png)