What Causes Mineral Deficiencies?

5. Magnesium

Magnesium is essential for more than 300 biochemical functions that control many actions, including muscle contraction, blood glucose levels, regulation of blood pressure, and new muscle tissue generation. It is common for people to have magnesium deficiencies, and certain medical conditions can predispose a person to low levels. Gastrointestinal conditions such as Crohn's and celiac disease can make absorption difficult, as can excess alcohol consumption and diabetes. Symptoms include fatigue, weakness, numbness in the arms and legs, muscle cramps, and abnormal heart rhythms. People get magnesium naturally from spinach, nuts, brown rice, wholegrain, fish, meat, and dairy.