Concerning symptoms Even if you started a vitamin on your own, or with very basic guidance, you should always talk with your provider and expect lab testing to be discussed if you notice: Unexplained tiredness that does not improve Numbness, tingling, balance problems or vision changes Significant mood changes or confusion Frequent fractures or bone pain Unintentional weight loss, ongoing digestive issues or chronic diarrhea These can have many possible causes
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This simple blood test costs $20 to $50 and provides clear information about whether supplementation makes sense
Maintenance Treatment (most patients) Most people who need regular vitamin B12 injections will have one injection every 12 weeks (every 3 months) to keep their vitamin B12 levels healthy
Good for high-dose peptides where you're injecting large amounts
Molecular Immunology, 154, 230-240