Before taking Vitamin B12 Injection, inform your doctor if you: Are allergic to Vitamin B12 or cobalt Have any other food or medicine allergies An eye disease called as Leber's optic neuropathy A slow growing blood cancer where your bone marrow makes too many red blood cells (polycythemia vera) Gout (high uric acid levels in body) Iron or folic acid deficiency anemia Low potassium levels in your blood Drug interactions It is important to tell your healthcare professional about all other medicines that you have taken recently including any kind of supplements and non-prescription drugs
No idea if that's actually the cause
For example, in animal studies, methylcobalamin significantly prolonged the survival of mice with cancer, while cyanocobalamin was completely ineffective (6)
(Source) When this enzyme is present in great concentration within fat cells and is highly expressed, obesity is inevitable: In the study by Kannt and colleagues, NNMT expression is increased ~2-fold in subcutaneous and omental adipose tissue of type 2 diabetic subjects (men and women), compared to healthy controls Importantly, interventions that increase insulin sensitivity, such as exercise and bariatric surgery, also decreased expression of NNMT in adipose tissue For this reason alone, scientists have been interested in every possible method for inhibiting NNMT expression: We report that NNMT expression is increased in [white adipose tissue (WAT)] and liver of obese and diabetic mice
Improved Mood: B12 is known for its role in producing brain chemicals that affect mood, potentially reducing symptoms of depression and anxiety