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During the time you are taking B12 injections, you will likely need blood tests often for monitoring levels in your blood
Age alone is a weaker reason than it is usually presented as: whole-blood NAD+ does not reliably fall with age, and the decline that does show up is tissue-specific and load-dependent
You have no B12 deficiency symptoms
Rotate between the left and right sides of your abdomen, thighs, and upper arms on a consistent schedule
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