will b12 injections cause weight gain Beyond the Needle: Unpacking Vitamin and Your Body B12 Injections & Weight Loss:
Description
5-Amino-1MQ inhibits NNMT, an enzyme that depletes NAD+ and promotes fat storage

Note that unlike other water-soluble vitamins, B12 can be stored in the liver for a long time, so it might be years before B12 deficiency symptoms start appearing
When medically appropriate, medication is prescribed and dispensed through a licensed pharmacy

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