injectable b12 vs oral b12 Vitamin Injections vs. Supplements: Which Works Best? Compounded Hydroxocobalamin (Vitamin B12) Injection

Zhang et al., 2016)

We found that during reprogramming in mice, the microbiota presented changes indicative of a shortage of [vitamin] B12

The combination is most useful for patients with one or more of the following: BMI of 30 or higher , or BMI 27 with at least one weight-related condition such as type 2 diabetes, hypertension, or sleep apnea History of fatigue, low mood, or brain fog on previous diets or weight loss attempts Metformin use for type 2 diabetes or pre-diabetes (chronic metformin reduces B12) Long-term proton pump inhibitor use such as omeprazole, pantoprazole, or lansoprazole Vegetarian or vegan diet with limited animal protein intake Adults over 50 , where B12 absorption naturally declines Active strength training or higher physical demands while on a calorie deficit Patients who dont fit any of these profiles can still take semaglutide alone, then add B12 if symptoms suggest it

The XmnI (G)gamma polymorphism influences hemoglobin F synthesis contrary to BCL11A and HBS1L-MYB SNPs in a cohort of 57 beta-thalassemia intermedia patients

doi:10.1345/aph.1A122

Your doctor may recommend reducing or stopping B12 supplementation, then retesting in 4 to 8 weeks