Before taking a B12 shot, tell your doctor if you: Are allergic to B12, cobalt or any multivitamin combinations Have vision issues or Lebers disease (a genetic condition that causes vision loss) Have any infections Have been diagnosed with folic acid deficiency or iron deficiency Are pregnant, breastfeeding, or planning to get pregnant Are taking any supplements, including herbal supplements Are taking any medications, such as folic acid, methotrexate, chloramphenicol, colchicine, para-aminosalicylic acid (PAS), or pyrimethamine Have liver or kidney disease Have a drinking problem Health News Exercise Underwhelms as a Hip Arthritis Treatment, Review Concludes Tongue Pacemaker Might Improve Sleep Apnea Patients' Health People Living Longer, But Spending More Years With Illness And Disability Measles Cases Set 35-Year US Record With Months To Go In 2026 GLP-1 Use Surges Among Young People With Obesity More Health News RxList
"Injections are the preferred treatment for patients unable to absorb vitamin B12, such as patients with autoimmune-related anemia or pernicious anemia, or history of gastrectomy, which means partial removal of the stomach, or a history of bariatric surgery," Levine told InStyle
If you are dealing with digestive issues on this medication, the semaglutide constipation treatment guide and the semaglutide bloating article offer practical solutions
Each approach has different evidence levels, timelines, and side effect profiles understanding the mechanisms helps in evaluating which compounds have the strongest research support for specific fat loss goals
