B12 deficiency produces a recognizable cluster of symptoms: fatigue, weakness, neurological changes including tingling or numbness in the extremities, cognitive fog, and in more severe cases, megaloblastic anemia
Stick to high-quality Bacteriostatic Water
Folate must be checked alongside B12, and folate deficiency should never be treated in isolation when B12 is low, because doing so can mask the anaemia while neurological damage progresses
10.1186/s12933-023-01797-5 [DOI] [PMC free article] [PubMed] 66.Thomas MK, Nikooienejad A, Bray R, Cui X, Wilson J, Duffin K, Milicevic Z, Haupt A, Robins DA
Enhances Nutrient Absorption: Ideal for individuals with digestive issues that limit B12 absorption from food