Sublingual administration, which bypasses the gastrointestinal tract, appears to be equally effective as IM injections while being less invasive and more cost-efficientparticularly in patients with atrophic gastritis, post-gastrectomy status, or conditions that impair intrinsic factor-mediated absorption, where long-term intervention is often required
If your diet lacks B12 or you prefer not managing daily pills, injections could be more convenient, and vice versa
Food and Nutrition Bulletin, 45(1_suppl), S40-S49
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Vitamin B12 is an essential nutrient that supports many critical functions in the body, including red blood cell production, nervous system health, and DNA synthesis