Jung, Y.-H., Kim, H., Kim, H., Kim, E., Baik, J., & Kang, H
The Basics: What Are Vitamin B12 Injections
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NNMT (nicotinamide N-methyltransferase) is an enzyme found in fat cells and other tissues that can become overactive in certain metabolic conditions
Research is ongoing in this area for individuals without a deficiency, but if you have a deficiency, vitamin B12 injections may help fight fatigue, weakness, and other symptoms