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The recommended daily intake (RDI) of vitamin B12 for adults is 6 micrograms per day

General Health Vitamin B12 Test Normal Range, Purpose, Procedure and Results Interpretation 6 min read By Apollo 24|7, Published on - 13 May 2025, Updated on - 05 November 2025 Share this article 0 3 likes Vitamin B12 is an essential water-soluble vitamin involved in many critical processes within the human body

1000 g daily) may be able to produce adequate absorption of vitamin B 12 even in the presence of intrinsic factor deficiency, and therefore may be an alternative to the intramuscular route for many people

People who are pregnant, breastfeeding, older, or following highly restricted diets should also review supplements with a healthcare professional

Increased intestinal permeability is facilitated by a high-fat diet (HFD) 22 , and may allow for bacterial translocation from the gut to adipose tissue 23