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Despite its importance, many people don't get enough of it
First, every puncture introduces a tiny amount of air, microbes, and surface contamination from the rubber stopper
When to consider B12 injections
Vitamin B1 The recommended daily allowance (RDA) of vitamin B1 (thiamin) is 1.5 mg per day for an adult, and 0.7 mg for children age 1 to 4
Opened vials should always be clearly labelled with the date of first use to avoid accidental use beyond the recommended timeframe
What are the signs that B12 is working
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