We read somewhere vitamin D3 was a great natural testosterone support, so he started supplementing vitamin D3. (legionathletics.com)
For example, testosterone supports red blood cell production in bone marrow. (hghinjections.us)
Testofen is the patented fenugreek seed extract that modern science has shown to have a significant impact on male vitality and virility, especially when reinforced by the critical ingredients in the Supreme Testosterone Support Complex. (forcefactor.com)