Three Parts:Increasing Ejaculate the Quick and Easy WayIncreasing Ejaculate . to manufacture testosterone, which is largely responsible for sperm production. Feb 11, - Here are 10 science-backed ways to boost sperm count and increase fertility in men. Take D-Aspartic Acid Supplements. Exercise Regularly. Get Enough Vitamin C. Relax and Minimize Stress. Get Enough Vitamin D. Try Tribulus Terrestris. Take Fenugreek Supplements. Get Enough Zinc.