side effects of b12 injections in humans Shot Guide: Benefits, Dosage & Why Do I Feel Worse

While most individuals obtain sufficient amounts of vitamin B12 through their diet, some individuals may require supplementation due to certain health conditions or lifestyle choices that can lead to vitamin B12 deficiency

For instance, one small study demonstrated that individuals with premature hair graying had lower vitamin B12, folate, and biotin levels than control subjects without premature gray hair (13)

Individuals with certain allergies, liver conditions, or kidney disease, or those who are pregnant or nursing, should consult a physician before starting any injection protocol

Unlike other drugs such as Mounjaro and Zepbound, which activate both GLP-1 and GIP receptors, MariTide works as a GLP-1 receptor agonist and a GIP receptor antagonist

Doing so is optional, but it may help eliminate any discomfort from injecting cold fluid