Performance Sport Nutrition 250 Per Serving Testosterone Protector Lean Muscle Mass Support Fat-Burning Metabolism Support Vegetarian Gluten Free Allergen Free Non GMOˆ Test Booster Fat Burner Dietary Supplement 30 Vegetarian Capsules ˆWe do not use ingredients that were produced using modern biotechnology Men have estrogen too (not just women), and the more your body has can actually decrease your testosterone levels. Diindolymethane (DIM) converts strong and damaging forms of testosterone into weaker form so your testosterone is protected and your balance of testosterone to estrogen ratio is in check. Research shows highest levels of testosterone and low levels of estrogen have been linked to lean muscles mass, an efficient fat-burning metabolism, and low abdominal fat.