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also shellfish and crab meat
Sometimes, you might need them weekly
The serum B12 test alone misses many deficient patients, as high levels of methylmalonic acid and homocysteine have been identified as better indicators of B12 deficiency than the actual serum B12 level
High levels of B12, or hypercobalaminemia, can be a sign of tissue breakdown, which releases B12 back into the bloodstream
A 5,000 mcg dose is typically used in specific cases like: Severe deficiency Pernicious anemia Absorption problems Certain neurological symptoms Doctor-supervised treatment plans For an average healthy person, that amount is often unnecessary
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