B12 injections are medically indicated for individuals with a diagnosed B12 deficiency or conditions that impair B12 absorption, such as pernicious anemia, Crohns disease, celiac disease, or a history of gastric bypass surgery
(PubMed) Seshadri S, Beiser A, Selhub J, et al
Hofer LJ, Elian KM
May help overcome weight loss plateaus when paired with a healthy lifestyle
You might also have pale skin, heart palpitations, loss of appetite, weight loss, and infertility
Additionally, because low NAD+ is linked to aging, its decline could contribute to the development of various age-related health concerns, including cardiovascular disease, metabolic disorders, the development of neurodegenerative diseases such as Alzheimers and Parkinsons, and cancer