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Oral Supplements Cyanocobalamin tablets (common) Methylcobalamin (easier to absorb) B12 sprays or dissolvable tabs Pros: Easy to take No needles Affordable Cons: Absorption varies Not ideal for GI conditions Food Sources Liver (highly concentrated) Eggs Red meat Cheese Shellfish and fish Plant-based
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PMID 16087991
Focus on week-over-week trends rather than day-to-day changes
What vitamin B12 level is considered deficient
[9] A modified version of CJC-1295 has also been evaluated for its actions on diverse physiological functions
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