b12 injection in bicep Injections for Energy: Benefits and How It Works B12 Injections | Baton Rouge,
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And controversial

A more defensible way to state the mechanism is this

They can improve metabolism and support weight loss by promoting fat breakdown

This, in turn, boosts metabolic rate and activates a gene known as sirtuin-1 (SIRT1), also referred to as the "longevity gene." SIRT1 is involved in reducing the risk of various conditions such as diabetes, obesity, metabolic syndrome, atherosclerosis, cardiovascular disease, kidney disease, liver disease, neurodegeneration, and cancer.

John DiBella Published: November 3, 2025 Fact-checked by Dr