Organ Meat: Organ meat like liver and kidneys are great foods that will give your dogs the best nutrition, vitamins A, E, C, and B12, proteins, and minerals while low on calories and fat
In fact, up to 88% of people on plant-based diets may lack adequate serum vitamin B12 levels
Apoptosis induced by NAD depletion is inhibited by KN-93 in a CaMKII-independent manner [PMID: 26024774] Laboratory literature summary: Apoptosis induced by NAD depletion is inhibited by KN-93 in a CaMKII-independent manner
Deficiency in B12 can result in neurological and psychiatric symptoms, including vision issues, muscle weakness, and mood disorders
Once it is within your bloodstream your body can make use of it