how much b12 is in an injection Cyanocobalamin (B12) 1000 mcg/mL, Multiple Dose Vial 30 mL Vitamin B12
Description
In contrast, oral vitamin B12 supplements need to pass through your stomach acid and digestive system, and their absorption can be less reliable, especially if there are absorption issues
[2] Causes are usually related to conditions that give rise to malabsorption of vitamin B 12 , particularly autoimmune gastritis in pernicious anemia
Key takeaways Individuals with ulcerative colitis may face difficulties absorbing vitamin B12 due to intestinal inflammation, which can lead to a deficiency
Nausea, headache, and dizziness are reported in smaller subsets
