does b12 injections make you gain weight for Loss 5 Benefits of B12 Shots
Description
It works by calming down an enzyme (NNMT) that slows the metabolism in people with obesity, diabetes, or aging

But it may cause more discomfort during insertion

American College of Obstetricians and Gynecologists (ACOG)

Research on Cardiovascular Function Because obesity is strongly associated with cardiovascular strain, investigators have speculated that AOD 9604s influence on adipose reduction may indirectly affect cardiac performance

"Prevalence of vitamin B12 deficiency in type 2 diabetic patients using metformin: a cross-sectional study"
References : Office of Dietary Supplements, NIH