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Offered strictly for controlled laboratory research use only
Human clinical trials have not been completed, meaning efficacy and safety in people is not established through rigorous research
B12 injections bypass digestion and deliver the vitamin directly into your bloodstream
Plant-based sources : Vegans and vegetarians who can't source their vitamins from meat can consume seaweed or nutritional yeast
For long-term storage, keep them in the freezer
The NIH Office of Dietary Supplements, citing Institute of Medicine recommendations, advises that it is advisable for those older than 50 years to meet their RDA mainly by consuming foods fortified with vitamin B12 or a supplement containing vitamin B12. This recommendation reflects the fact that 10 to 30% of older adults lose the ability to efficiently absorb naturally occurring B12 from food
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