MAGNESIUM
This mineral plays a key role in regulating the heart-beat—studies show that getting enough may protect men against heart disease as well as bring down high blood pressure. Magnesium also boosts fertility by making sperm more vigorous. You’ll get about two-thirds of your daily requirement of magnesium from a breakfast of two cups of shredded wheat, skim milk and banana. Baked potatoes, beans, nuts, oatmeal, peanut butter, whole-wheat spaghetti, leafy vegetables and seafood are also magnesium rich.