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How B12 Injections Work: Science Meets Simplicity Understanding how B12 injections work starts with understanding your metabolism
J Hum Genet 60, 657664 (2015)
Many of the people surveyed would prefer their injections to be overseen by a doctor but felt they had no choice but to self-medicate more frequently to improve their quality of life
8 weeks: 112 doses needed
A 2019 study found sublingual B12 supplements (aka the kind you put under your tongue) were even more effective than B12 shots
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