These subtle shifts can help you determine if your stack is working for you
Contact your GP for B12 testing if you have: Symptoms suggesting deficiency (persistent fatigue, pins and needles, memory problems, glossitis) Risk factors for deficiency (vegan diet, gastric surgery, long-term metformin or proton pump inhibitor use) [1] [4] Concerns about whether your current supplementation dose is appropriate Underlying conditions affecting B12 metabolism (kidney disease, liver disease) Unexplained high B12 levels on a blood test when not taking supplements Routine monitoring is essential for patients receiving therapeutic B12 injections
Szklarczyk D, Gable AL, Nastou KC, Lyon D, Kirsch R, Pyysalo S
It's not always the case but it does come to mind
Your clinician may recheck labs 710 days after starting (reticulocytes/hemoglobin) and again around 8 weeks (NHS)
Whereas, human intestinal cells can also convert glutamate into glutamine, this process is limited due to the low glutamine synthetase activity in the small intestine (89, 90)