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Common B12 deficiency symptoms include fatigue, anxiety, depression, poor memory, confusion, brain fog, tingling or numbness in the extremities, zings or zapping feelings in the extremities, anemia, shortness of breath, muscle weakness, irritability, tender calves, pale complexion and more
drive to eat, not willpower: Martin Nature Medicine 2025
Nicotinamide (niacinamide) does not cause flushing and has fewer side effects, with nausea and liver toxicity reported only at very high intakes ~3 g/day)
What to look for Purchase bacteriostatic water from pharmacies, licensed medical supply companies, or established vendors with verifiable quality certifications
It works, at least in part, by activating the FAKpaxillin pathway in cells
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