b12 injection or supplement Vitamin Injections vs. Supplements: Which is Right for You? Deficiency can result in anemia Vitamin B12 Injection Dosage |

doi: 10.1016/j.yebeh.2023.109104 [PubMed] 36988597 Perez DL, Hoch DB, Cohen JN

This is a great option if youre feeling run down and need a quick pick-me-up without the fuss

Efficacy of oral compared with intramuscular vitamin B-12 supplementation after Roux-en-Y gastric bypass: a randomized controlled trial

Mechanisms and consequences Non-injectable B12 products that do not require gastric acidity and/or Intrinsic Factor (IF) are now available to support B12 absorption

73% bioavailability via subcutaneous injection

The severity and duration of deficiency are primary determinantspatients with mild, recently developed deficiency typically respond more rapidly than those with longstanding, severe depletion