Neurologic symptoms are often linked to electrolyte imbalance and certain trace minerals. Magnesium deficiency may increase neuromuscular excitability, leading to tingling, twitching, cramps, and restlessness. Potassium disturbances can markedly affect muscle function and strength. Although not a mineral, vitamin B12 is a key differential in neuropathic symptoms. Among trace elements, copper deficiency can present with neurologic findings and may be precipitated by excessive zinc intake. Iron deficiency more commonly affects cognition and fatigue rather than direct nerve injury. In practice, symptom pattern, medications, diet, and labs are evaluated together. Persistent numbness, weakness, gait imbalance, or progressive symptoms warrant prompt neurologic assessment.\n\nSource note: NIH ODS (magnesium deficiency symptoms; zinc–copper interaction).