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All mice received 2 days of 10 mL/kg body weight sterile saline subcutaneous injections before beginning the treatment phase to allow for acclimation to the handling and stress associated with injections

B12 injections are medically indicated for individuals with a diagnosed B12 deficiency or conditions that impair B12 absorption, such as pernicious anemia, Crohns disease, celiac disease, or a history of gastric bypass surgery

These drawbacks are common to all injections, however, not just vitamin B12

Provide Medical History: Discuss any relevant health conditions that might qualify you for Zepbound

The other half is technique