Magnesium Deficiency

Symptoms of magnesium deficiency may include agitation and anxiety, restless leg syndrome (RLS), sleep disorders, irritability, nausea and vomiting, abnormal heart rhythms, low blood pressure, confusion, muscle spasm and weakness, hyperventilation, insomnia, poor nail growth, and even seizures.

Read more: http://www.umm.edu/altmed/articles/magnesium-000313.htm#ixzz1tzehTtgc