how often can you inject b12 Injection Dosage and Frequency: 7 Guidelines for Adults Injecting B12 - Enhance Me

Raises NAD+ and SAM The same study showed that NAD+ and S-adenosyl-methionine (SAM) both went up after NNMT inhibition

Well, the duration of B12 injections can vary from person to person

Journal of Endocrinology and Metabolism, 3(12), 715

In conjunction with B12, these amino acids work to pump up your natural metabolic rate, meaning your body becomes more proficient in turning food into energy that you can use all without storing more than you need, meaning its more difficult to gain weight

Kidney Disease: Patients with kidney disease should use B12 injections with caution, as the kidneys are involved in metabolizing B12