Note the number: this is a weak dose for weight but the proven dose for the kidney, and the benefit belongs to that specific population
Other issues, like atrophic gastritis (a thinning of the stomach lining), reduce the production of stomach acid, which is essential for releasing B12 from food
M., Kalogjera, L., Zizek, H.,
Processing of cholesterol and protein gives propionyl-CoA that is converted to methylmalonyl-CoA, which is used by MUT enzyme to make succinyl-CoA
For a 2mg dose: 2mg = 2,000 mcg 2,000 mcg / 10,000 mcg/mL = 0.2mL 0.2mL x 100 = 20 units For a 6mg dose: 6mg = 6,000 mcg 6,000 mcg / 10,000 mcg/mL = 0.6mL 0.6mL x 100 = 60 units For a 12mg dose: 12mg = 12,000 mcg 12,000 mcg / 10,000 mcg/mL = 1.2mL 1.2mL x 100 = 120 units The same formula works at any concentration
As we get older, however, NAD+ production slows down, leading to mental and physical fatigue