This could be due to a variety of reasons such as genetic factors, underlying health conditions like pernicious anaemia, or gastrointestinal surgery
Some individuals prefer the natural version because it matches what already exists in the human body

Product Attributes Scientific References GLP-2T Trzptd once weekly for the treatment of obesity Human RCT Trzptd : a systematic update Review Trzptd versus smglutd once weekly in patients with type 2 diabetes Human RCT Efficacy and safety of once-weekly trzptd versus once-daily insulin degludec as add-on to metformin in patients with type 2 diabetes (SURPASS-3): a randomised, open-label, parallel-group, phase 3 trial Human RCT Dual GIP and GLP-1 receptor agonist Trzptd improves beta-cell function and insulin sensitivity in type 2 diabetes Human observational Effects of novel dual GIP and GLP-1 receptor agonist trzptd on biomarkers of inflammation and cardiovascular risk in patients with type 2 diabetes Human RCT LY3298176, a novel dual GIP and GLP-1 receptor agonist for the treatment of type 2 diabetes mellitus: from discovery to clinical proof of concept Animal A long-term safety study of trzptd (LY3298176) in participants with type 2 diabetes Human RCT Effect of trzptd versus insulin degludec on liver fat content and abdominal adipose tissue in people with type 2 diabetes (SURPASS-3 MRI): a substudy of the randomised, open-label, parallel-group, phase 3 SURPASS-3 trial Human RCT Once-weekly smglutd in adolescents with obesity (comparative to trzptd context) Human RCT 5-Amino-1MQ Selective and membrane-permeable small molecule inhibitors of nicotinamide N-methyltransferase reverse high fat diet-induced obesity in mice Animal Roles of nicotinamide N-methyltransferase in obesity and type 2 diabetes mellitus Review What is 5-Amino-1MQ

None of these belong in the same conversation as semaglutide or tirzepatide for someone with a clear obesity indication
Vitamin B12 also affects the synthesis of fatty acids and the production of energy
Prevention Someone can prevent a B12 deficiency by eating a well-balanced diet or through supplementation if dietary deficiencies or absorptive conditions limit the body from getting what it needs from food and beverages alone