The volume of medication that could possibly escape through a 30-gauge needle track is negligible

Normal vital signs (blood pressure, heart rate, respiratory rate, temperature) and body mass index (BMI) between 18 and 30 kg/m 2 Suboptimal vitamin B12 status (deficient to borderline 200300 pg/mL), defined as serum B12 levels within the lower end of the reference range (234894 pg/mL) Able to provide informed written consent Able to comply with study procedures and follow-up visits as outlined in the protocol 2.2.2 Exclusion criteria Known hypersensitivity or allergy to oral vitamin B12 supplements or any of its components Known history of cobalt allergy or sensitivity Severe malabsorption syndromes, including pernicious anemia or intestinal disorders affecting vitamin B12 absorption Current use of acetaminophen, nonsteroidal anti-inflammatory drugs, antibiotics, antacids, proton pump inhibitors (PPIs), multivitamins, or nutritional supplements containing vitamin B12 History of gastric bypass surgery or other procedures that significantly alter GI anatomy or function Significant renal impairment (estimated glomerular filtration rate [eGFR] 0.05) Supplementary Table 1

Better Bone Health: Adequate B12 levels are associated with higher bone mineral density
Hair loss has many possible causes, but if your hair loss is linked to a vitamin B12 deficiency, you can restore hair growth by increasing your B12 levels
Semaglutide for managing overweight and obesity
MICC Injection (L-Methionine, Inositol, Choline, and Cyanocobalamin): Contains amino acids and B vitamins that assist in fat metabolism and energy production, helping you feel more energized throughout the day