Do you feel irritable, weak and exhausted all the time? You may be suffering from a magnesium deficiency. Magnesium is a crucial, but frequently overlooked, part of a balanced diet. It’s crucial in more than 300 bodily functions – many of which give you energy. Get your daily dose of this fatigue-fighting mineral by eating five servings of these magnesium-rich foods a day. Read more about the health-benefits of magnesium.