difference between b12 injections and sublingual How does Vitamin compare to oral Vitamin B12 supplementation in elderly individuals? Are sublinguals better than Injections?
Description
5-Amino-1MQ inhibits NNMT (nicotinamide N-methyltransferase), an enzyme that consumes NAD+ the coenzyme required for mitochondrial respiration and sirtuin activation

doi: 10.1038/nrc1014 2 ParkJREggertACaronH

Yes, but it should not if it is injected properly and you take the proper post-injection precautions

Some individuals may struggle to absorb B12 through diet alone especially those with certain dietary restrictions or medical conditions