Our expert says:
I must admit that I have NEVER heard of anyone losing weight because they have received a vit B12 injection! Vit B12 is essential for the formation of healthy blood and to prevent so-called pernicious anaemia. If you suffer from this type of anaemia it could affect your fertility, so using B12 should prevent the anaemia and increase your fertility, but I don't think it is going to help you lose weight.
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