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Common signs include: Fatigue and weakness Numbness or tingling in the hands and feet Difficulty walking or balance problems Mood changes, such as depression or anxiety Cognitive difficulties, including memory loss or confusion If not treated, a B12 deficiency can cause serious problems
In these cases, patients pay out of pocket
Neurology, 41 (11), 1726-1732
Mechanism based on peer-reviewed research
Researchers and purchasing institutions are responsible for ensuring compliance with applicable European regulations governing research chemicals
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