These chilly-sounding mollusks have the ability to heat things up quick, with more than three times the recommended daily value of Vitamin B12. A 3-ounce serving also has 20 grams of muscle-boosting protein, with only 4 grams of fat and 150 calories. Like clams, they’re rich in iron, which helps ensure that your blood flows everywhere it needs to. They’re also high in magnesium, a natural enhancer; low levels of the mineral have been shown to contribute to ED. Boost your levels even further with these magnesium-rich foods.