im b12 injections Best Vitamin Injection Sites: Where to Inject B12 · PA Relief Vitamin B12 IM Injectable at

Prez R, Castilla-Cortzar I, Nez M, Prado A, Mirpuri E, Garca M, Gonzlez Barn S, Picardi A: IGF-I does not improve fat malabsorption in cirrhotic rats

That said, there are several hypotheses to be aware of if you're concerned about the link between high vitamin B12 levels and cancer

Research indicates that stimulation of monoaminergic neurotransmission can impact metabolic rate by increasing energy expenditure either directly through activation of peripheral 3 adrenergic receptors in brown adipose tissue (increasing thermogenesis) or indirectly through central dopamine receptor-dependent increases in motor activity

However, like other supplements, upset stomach, headaches, pain at the site of injection, reddening, swelling, and other discomforts at the point of injection are also positive