Ozbey-Yucel U, Ucar A, Aydogan Z, Tokgoz-Yilmaz S, Beton S
They may recommend adjusting the dosage, exploring different forms of B12 supplementation, or addressing underlying health issues that could be contributing to your symptoms

Food & Drug Administration (2025) Ozempic, DailyMed (2025) Wegovy, DailyMed (2024) Once-weekly semaglutide in adults with overweight or obesity, New England Journal of Medicine (2021) Vitamin B12, National Institutes of Health Office of Dietary Supplements (2024) Vitamin B12 injections: What they can and cant do, Cleveland Clinic (2024) Once-weekly semaglutide administered after laparoscopic sleeve gastrectomy: Effects on body weight, glycemic control, and measured nutritional metrics in Japanese patients having both obesity and type 2 diabetes, Obesity Pillars (2024) Inverse association between serum vitamin B12 concentration and obesity among adults in the United States, Frontiers in Endocrinology (Lausanne) (2019) Medically accurate: SingleCares Medical Review Board analyzes all of our content to confirm its in line with current medical advice

Prescription peptides used under medical supervision have generally favorable safety profiles in published research, though risks vary by peptide, dose, and your individual health context