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Studies suggest intranasal delivery can reach plasma levels similar to injections

Standard protocols use 50100 mg/kg via oral gavage or supplemented drinking water, per institutional guidelines

Early treatment can greatly improve health for those with B12 deficiency

Both routes demonstrate excellent safety profiles in available studies

The most common ones among real-world patients seem to be headaches, nausea, dizziness, and injection site redness or irritation that should subside with use

The Framingham Offspring study found that 39% of the general population may be in the low normal + deficient B12 blood level range