Both are key nutrients, but they serve different functions in our bodies
This helps us spot any issues early and make better decisions for your care
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
The cheapest option online is almost always the riskiest, because you are not paying for sterility testing, verified potency, or a provider
This unique property means systemic abdominal injections can still support localized injuries, just with somewhat reduced local concentration
I also - wimp that I am - take a pain killer beforehand which helps though whether that is all in my mind or not I don't know