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V.von Castel-RobertsK
The systematic review protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO), registration number: CRD42024554513 (Available from) ( 2.2 PICOs question The primary research question addressed in this review was: What is the effectiveness of sublingual/oral administration of Vitamin B12 alone or compared to other forms of administration (e.g., intramuscular injection)?
No, there is no scientific evidence of a link between vitamin B12 deficiency and weight gain
So, continue injecting daily for at least three months
That is a deliberately narrow claim: the number is what the protocol says, the math shows exactly how it converts to a syringe draw, and everything about whether the compound does anything in a human is left to the honest evidence section rather than smuggled into the dose
Promotes healthy hair, skin, and nails: Vitamin injections can contribute to healthy hair growth, clear skin, and stronger nails
