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B12 Injections & Weight Loss: What the Evidence Says B12 injections for fat loss have gained attention in wellness circles, yet their use for weight management lacks scientific support

PMID 38665151

Prefilled injection pens Some biologic medicines come in prefilled injection pens

As an alternative to FDA-approved branded products, where appropriate, a provider may prescribe a compounded drug, which is prepared by a state-licensed sterile compounding pharmacy partner

These injections, which typically include a combination of amino acids, vitamins, and minerals like vitamin B12, methionine, inositol, and choline, are designed to aid in fat metabolism and improve energy levels

B12 shots might benefit people dealing with: Constant tiredness Low blood cell counts Trouble digesting Pernicious anemia Low nutrient levels Struggles with weight loss A study showed that injecting B12 into the muscle raised levels in the blood faster and kept them higher for longer than taking B12 by mouth in those with absorption problems