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vitamin b12 and folate injections Top Benefits of vitamin b12 and folate injections
Description
In a 2017 bioavailability study, methylcobalamin supplementation (1,000 mcg/day) led to 13% higher liver retention and lower urinary loss compared to cyanocobalamin, translating to sustained energy in deficient adults

The major portion is excreted within the first 24 hours

Feb 2001;45(1):51-4

[11,12] Researchers aren't sure whether contraceptive use results in a disruption of vitamin B12 absorption, recycling, or storage
