Having a low level of magnesium can be dangerous and cause health issues.
When you do have a low level of magnesium you'll have symptoms such as A loss of appetite, nausea, vomiting, fatigue, and weakness.
When you're levels of magnesium are more severely low then you may experience symptoms of the severe low levels of magnesium such as numbness, tingling, muscle cramps, seizures, personality changes, and an abnormal heart rhythm.
If you think you have a low level of magnesium you should see a doctor and let them know you think you may have low levels of magnesium and they can test you to find out for sure.
The doctors have ways of increasing your levels of magnesium so they don't get too low which can be dangerous if left untreated.