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Vitamin B12 is not considered dangerous for most men, but excessive supplementation may mask underlying health issues, such as folate deficiency, if not managed with proper medical supervision
Step 5: Wait and inspect Let the vial sit upright for 2-5 minutes
Fatigue and weakness are often the first indicators that B12 levels are dropping
For confirmed significant deficiency, a loading protocol with more frequent injections may be recommended initially
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