But if you are comparing products from different sources and one labels as sodium while the other labels as base, understand that they are not quite identical milligram-for-milligram
The right choice depends on your goals, health history, symptoms, medications, allergies, pregnancy or breastfeeding status, and whether a B12 shot, IV therapy, wellness injection, or medical consultation is the better next step
Vitamin B-12 is found naturally in certain foods such as meat, fish, eggs, milk, and some fortified cereals
If you can absorb a vitamin 50% better than taking it by mouth, it is not surprising why so many people are now turning to injections over oral vitamin supplementation
doi.org/10.1038/nature05383 Chang, C