Muscle Weakness
Fatigue, especially of chronic origin, can be due to deficiency of magnesium. It is characterized by mental or physical exhaustion or weakness.
Everyone can become fatigued from time to time due to multiple factors. Typically, it merely means you need to rest. However, persistent and long-term fatigue can be a sign of a health problem. The exact cause of fatigue is almost impossible to identify unless accompanied by other signs and symptoms.
Fatigue, associated with muscle weakness, can be a clear indication of magnesium deficiency. It is due to the loss of potassium in muscle cells. Therefore, you should consult your physician if your fatigue is not resolving after rest or lingering for an extended period.