how long does it take for b12 injections to work Shots at Home: How, Where & Often Inject Yourself B12 Injections for Weight Loss:
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When Should You Get a B12 Injection Before Travel

doi: 10.1093/hmg/10.14.1465

A smaller body requires fewer calories to maintain

However, both injections are safe, effective, and often used in tandem for optimal results

Preliminary research suggests that these mechanisms may be similar to those observed with exogenous hGH therapy, including the activation of the adrenergic receptors and increased lipolysis in adipocytes [5]

B12 injections are injected into the muscle and dispersed over time, bypassing the digestive tract, so you get much higher absorption than you would orally
