peptide supplements bpc 157 BPC-157 Can vitamin B12 cause

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The study comprised a single intravenous (i.v.) administration of the peptide (20 μg/kg in Sprague-Dawley rats and 6 μg/kg in beagle dogs), a single intramuscular (i.m.) administration of 20, 100, or 500 μg/kg (rats) and 6, 30, or 150 μg/kg (dogs), and repeated i.m

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The National Academy of Medicine set no official upper limit for B12 because no clear toxicity threshold has been established in human studies B12 is extremely difficult to overdose on orally because only 1.5-2 mcg per meal is actively absorbed, and excess is excreted through the kidneys Unexpectedly high serum B12 without supplementation is a red flag that warrants medical investigation, not a sign of good health The Brasky et al