Studies and UK dietitian protocols suggest: This amount bypasses the need for traditional absorption pathways and is effective for most post-op patients who take it consistently
Some clinics offer package deals, since weekly injections can help improve your results
What the Authoritative Sources Say About B12 Deficiency and Supplementation The National Institutes of Health Office of Dietary Supplements publishes the most thorough citation-backed overview of vitamin B12 its role in red blood cell formation and neurological function, the populations most at risk for deficiency (older adults, people on long-term metformin or proton pump inhibitors, vegetarians and vegans, people who have had gastric bypass surgery), and the recommended daily intake at each life stage
Used needles and syringes should go into an FDA-cleared sharps container right away
Clinically, B12 shots are often used to treat confirmed deficiency, neurological symptoms, or anemia related to low B12 levels