Continue Reading Injecting B12 into fat results in slower absorption, which may mean less B12 is wasted
Higher absorption: 100% bioavailability compared to oral supplements
Skin and subcutaneous adipose layer thickness in adults with diabetes at sites used for insulin injections: implications for needle length recommendations Shorter needles are also less painful, because they penetrate less tissue: The needle lengths that were once recommended for SC injection (for adults, 8 mm
Injections, on the other hand, provide high bioavailability and typically result in faster improvement of symptoms Injections may be a better choice if: Youve been diagnosed with a B12 deficiency You follow a vegetarian or vegan diet You take medications that impair absorption You want faster, more noticeable results Ideal B12 Injection Dosage & Frequency Theres no one-size-fits-all dosage for B12 injections
Consult your doctor before receiving it
Your provider determines the schedule based on your labs and response