Any type of food based on raw cacao, cocoa or chocolate is going to have a testosterone boosting effect. Note that "chocolate" is not the sugar-laden junk food found in most supermarkets. A proper chocolate bar should contain at least 60% cocoa, although 70% is even better. These types of chocolate are also labeled as "dark chocolate." Real chocolate should also not be heated during the manufacturing process, as that destroys most of the antioxidants and vitamins. Raw chocolate and cacao are awesome because they are loaded with magnesium, zinc, manganese, iron, and copper.