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Although B12 is a water-soluble vitamin (aka youll pee out the excess your bod doesnt use), you still shouldnt add a supplement without a trip to your doctor to test your vitamin levels
(PubMed) McEvoy CT, Shorey-Kendrick LE, Milner K, et al
HPLC-purified to analytical-grade standards, it is suitable for controlled biochemical research and assay applications
Serious side effects of B12 are injections rare but should be discussed with your provider before starting treatment
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