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Vitamin B12 helps your body make red blood cells

Meat, liver, eggs, and milk are therefore sources of the vitamin for other animals, including humans

Sources Vitamin B12 - Consumer | National Institutes of Health VITAMIN B12: Overview, Uses, Side Effects, Precautions, Interactions, Dosing and Reviews | WebMD Article Vitamin B12 Deficiency: Causes, Symptoms, and Treatment | WebMD Living longer isnt enough if you dont feel your best

You should start to see improvements within a few days to a week, however if you do not feel the effects after 2-3 injection sessions, then it is likely that you were and are not deficient in B12

You eat less because you're not hungry

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