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22 May 2026 6 min Why do I feel worse after my B12 injection
While some places might market it for general energy boosts or weight loss, if your B12 levels are already normal, there's little scientific proof that these injections will give you a significant energy rush or help you lose weight
If your symptoms suggest you need GP assessment or further testing, well recommend that route
Make one change at a time to identify what works
Published in vitro and animal-model research has examined NNMT inhibition in connection with several areas of scientific interest, including adipocyte metabolism , NAD pathway regulation , mitochondrial function , and cellular energy signalling
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