best place to give yourself a b12 injection Optimal Sites for Maximum Absorption and Benefits How to Inject Vitamin B12

Research-context answer Oral absorption and injected delivery are different

The tirzepatide stomach injection guide covers proper technique

Still, vitamin B12 injections remain the most reliable and efficient method for addressing moderate to severe deficiency

Sublingual formulations (tablets or sprays placed under the tongue) are marketed as having superior absorption, but current evidence does not conclusively demonstrate that they offer significant advantages over standard oral tablets

The clinical drug development program was halted in 2007 after the pivotal Phase IIb trial did not show statistically significant weight loss in the primary endpoint