vitamin b12 injections versus oral supplements vs Supplements: Which are more effective? B12 Injection vs. Oral Supplements:

Those individuals must take dietary supplements to compensate for the failure of the body to get sufficient vitamin b12 levels from normal whole foods

SIRT1 is also known as the "longevity gene" because of its role in reducing the risk of diabetes, obesity, metabolic syndrome, atherosclerosis and other forms of cardiovascular disease, kidney disease, liver disease, neurodegeneration, and cancer

Associations between major dietary patterns and testicular function in a population-based cohort of young men: results from the Western Australian pregnancy cohort (Raine) study

Vitamin B12 shots are generally safe, with minimal side effects such as mild soreness at the injection site