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[16] For niacin, safety depends on the form used
Choline Choline is part of the vitamin B family
Sometimes coeliac disease is diagnosed by a gut biopsy
Serum B12 levels peak 12 hours post-injection and remain elevated for 710 days depending on dose and individual clearance rates
Gastrointestinal side effects from B12 supplements are typically mild, transient, and often related to inactive ingredients rather than the vitamin itself
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