can a b12 injection give you a headache Vitamin Side Effects and Safety Why do I feel worse
Description
People taking metformin, the common diabetes drug, are known to develop B12 deficiency as well, and people who avoid animal products can be deficient
doi:10.11604/pamj.2021.38.237.20967
Whilst the NHS notes that taking up to 2,000 micrograms daily is unlikely to cause harm in most people, there is generally no benefit to consuming such excessive amounts unless treating confirmed deficiency under medical supervision
Batch-specific Certificates of Analysis (COAs) are provided for full transparency and traceability
B12 and Intrinsic Factor Intrinsic factor is a protein secreted by the cells of the stomach lining
