34 Herring

This IKEA-cafeteria staple can actually help you put things together in the bedroom. In addition to packing four times your daily requirement of Vitamin B12 in one average-sized filet, herring is also rich in magnesium, which boosts testosterone and keeps sperm healthy and viable. On top of that, oily fish like herring are sky-high in vitamin D, which can help you get and keep it up. In a recent study published in the Journal of Sexual Medicine, Italian researchers examined 143 men with ED; 80% had sub optimal levels of the nutrient, and the men with severe ED had a 24% lower level of D than those with a mild form of the condition. The theory is that low levels of D promote dysfunctional blood vessels and a shortage of citric oxide.