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You might be suffering the symptoms of B12 deficiency, or you might know that you are at increased risk of B12 deficiency as a result of hereditary factors or other health conditions
If your goal is sharper thinking during demanding activities, B12 energy for mental performance is a common reason people add injections to their routine
B12 Shots & B12 Injections: The Good, Bad and Alternative
There are a variety of needle lengths and gauges to choose from, depending on the injection site and individual preferences
Upper arm: This site is best for young or middle-aged adults
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