One of the most widely known and essential minerals in the human body, Magnesium is a vital part of your diet. A Magnesium deficiency causes symptoms such as irritability, nausea, weakness and an abnormal heart rhythm. A lower-than-average percentage of this mineral in your bloodstream could result in nerve and muscle diseases. It’s absolutely essential for keeping your blood sugar and blood pressure at a balanced level, and helping your body make protein. It also supports energy production. It’s great for combating tiredness and fatigue.