The Endocrine Society's 2023 clinical practice guideline on obesity pharmacotherapy states: "Pharmacological treatment of obesity in adolescents should use agents with demonstrated safety and efficacy in randomized trials conducted in this age group" [12]
Metformin, commonly prescribed for type 2 diabetes, is known to reduce B12 absorption over time, as highlighted in MHRA safety updates
If youre in one of these groups, ask your doctor whether you could benefit from taking a combined B1, B6 and B12 vitamin complex like Vitamins B1+B6+B12 (NEUROBION) or Vitamins B1+B6+B12 (NEUROBION Forte)
The frequency of vitamin B12 injections may also vary depending on your individual needs and response to treatment

Studied applications NNMT enzyme-inhibition research NAD pathway and cellular energy signalling studies Adipocyte metabolism research in cell culture Mitochondrial function and enzymatic pathway research Specifications Class: Small-molecule NNMT inhibitor (not a peptide) Strength: 50 mg per tablet Count: 50 tablets per bottle Purity: 99% (HPLC-verified) Documentation: Batch-specific Certificate of Analysis included CAS Number: 42464-96-2 Molecular weight: 177 g/mol Format: Research tablet Storage & handling Store the sealed bottle at controlled room temperature, away from light, heat and moisture Keep the desiccant in the bottle and reseal after each access Handle only by qualified personnel in an appropriate laboratory setting Follow your laboratorys standard handling and disposal protocol Shipping USA same-day shipping on orders placed before 2pm CT (MonFri) Free domestic shipping on orders over $200 Ships from our facility in Dallas, Texas Frequently asked questions Is 5-Amino-1MQ a peptide

People with symptoms of vitamin B12 deficiency It is a good idea for anyone with the following signs and symptoms of a vitamin B12 deficiency or pernicious anemia to consult a doctor: People with gastrointestinal issues Conditions that affect the gastrointestinal tract may affect vitamin B12 release or absorption, including: pernicious anemia, which can lead to gastric atrophy, or damage to the stomach fish tapeworm infestation bowel or pancreatic cancer folic acid deficiency overgrowth of bacteria in the small intestine diabetes thyroid disease Crohns disease celiac disease chronic pancreatitis People who have undergone gastrointestinal surgery, including weight loss, may have fewer cells necessary to secrete stomach acid and intrinsic factor