[1] [4] Mood changes including low mood, irritability, or anxiety can be associated with declining B12 levels, though these symptoms are non-specific and can have many causes
High Vitamin B12 Levels May Be a Biomarker of Cancer A 2013 study published in the Journal of the National Cancer Institute reported that elevated serum cobalamin (vitamin B12) levels were associated with: 5 Subsequent cancer diagnoses, particularly within the first year of follow-up An increased risk of smoking-related, hematological (blood-related), and alcohol-related cancers Researchers concluded that elevated vitamin B12 levels may serve as a potential biomarker for cancer
If you have kidney disease or other health conditions, discuss appropriate protein intake with your healthcare provider or dietitian
Nicotinamide N-methyltransferase (NNMT) in health and disease. Cellular and Molecular Life Sciences, 78, 62416257
Staying well-hydrated helps