Arouza Ultimate Ginseng, flaxseed oil, and palmetto are some of these that enhance male fertility. Of course, there are other factors at work too and that is why we recommend healthy changes in your diet and lifestyle. Here food and nutrition also plays an important part. With the huge amounts of testosterone, some may be converted to estrogen which is the female sex hormone. Including any sort of antioxidant will increase your fertility strength as well.