Medications like metformin or acid blockers can also play a role
Blood test might be necessary either for a routine checkup or to diagnose and follow the evolution of certain conditions
In addition, individuals who may be vitamin K deficient due to liver failure, those with a propensity to bleed (e.g., bleeding peptic ulcers), and those with inherited bleeding disorders (e.g., hemophilia) or a history of hemorrhagic stroke, should not take -tocopherol supplements without close medical supervision because of the increased risk of hemorrhage (119, 128)
Figure 1: B 12 Test Result Review and Process Algorithm for Patients with Risk Factor for B 12 Deficiency* and/or Non-specific** or Specific Symptom of B 12 Deficiency TOP Management Treatment In suspected B 12 deficiency, supplement both B 12 and folate
See GHK-Cu Reconstitution, Daily Units, and Cycle Structure in the Perfect B Peptide Protocol Tool