50% of people don’t consume adequate Magnesium. Taking Magnesium addresses this deficiency and leads to increase in free and total testosterone levels. In the same manner, taking Vitamin D3 addresses deficiency occurring from inadequate sun exposure and boosts testosterone production. Vitamin K2 deficiency has also been linked to low testosterone levels. Studies have confirmed that Fenugreek and D-Aspartic Acid increase testosterone levels by stimulating a hormone in the brain that leads to testosterone production.