Broccoli and cauliflower are the two main types of cruciferous vegetables. Not only is this type of vegetable low-caloric (which means it is great for losing weight) but it also makes you feel full without having to eat a lot of it. Other benefits include increased testosterone production, while the Indole-3-Carbinol compound increases the excretion of estradiol in some men by up to 50 percent. The less estrogen you have in your body, the higher your flee-flowing testosterone is going to be.