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Some users notice subtle metabolic changes like increased energy or reduced appetite within the first 1-2 weeks
Theres evidence linking B12 deficiency to premature greying, and some case reports document grey hair returning to its original colour after B12 supplementation
For ongoing care, especially if you have a chronic condition causing the deficiency, you might need maintenance shots, maybe every two months or even monthly
B12 deficiency can affect anyone, regardless of dietary choices
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 RxList
