The king of all spices, the most popular spice that is used worldwide, here on the list is Black Pepper. It is no wonder that Black Pepper is loved by so many people and used by so many nations. The sharp pungent black seeds are not only good in your food but itâ??s also good for your body. The Black Pepper boosts our metabolism which helps our body to digest food properly. It also has anti-bacterial and anti-cancer properties.