can b12 injections affect kidneys Vitamin Benefits and Best Sources Symptoms of High Vitamin B12:

You have altered gastrointestinal function

Theoretical concerns about chronic NNMT inhibition include effects on the metabolism of other quinolinium and methylpyridinium endogenous metabolites and on the broader cellular methylation landscape

"Test-Negative Designs: Differences and Commonalities with Other Case-Control Studies with "Other Patient" Controls" (PDF)

Fat Loss Support: The injections help target stubborn fat, promoting its breakdown for energy and supporting weight loss

If this is lacking, the vitamin cannot be adequately utilized from food

Clinical inquiry: Is highdose oral B12 a safe and effective alternative to a B12 injection