If you follow a vegan diet, lack B12-rich food, or suffer from health conditions like B12 deficiency, which happens when a person cannot absorb it properly, then you may experience b12 deficiency
In many cases, B12 shots are available by prescription only
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B6 (pyridoxine) Pyridoxine is involved in amino acid metabolism, red blood cell production, and the creation of neurotransmitters
Lander had a negative side effect herself
If you don't know if you need it, why are you getting it