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The body excretes what it cannot use, which is why no upper intake limit has ever been set for it
Intravenous Administration The way B12 injections are given, either intramuscularly or intravenously, affects how well they work
Source quality: where is the B12 coming from
Now you're wondering: what actually is this stuff
Vitamin B12 shots are only available by prescription following a clinical diagnosis of low levels
Your body's circadian rhythm, meal timing, and activity level throughout the week can all influence how you experience the medication's effects, but these factors matter less than picking a day you'll remember and sticking to it consistently
