What are the best natural foods or herbs for male reproduction?

My boyfriend and I are trying to have another baby but we have been unsucceful for the last 2 years. I know that folic acid and vitamins B12 are good for female reproductive health, but what are some supplements or foods that he could take to improve our chances?

L- arginine is great for both male and female. It is best known as a sexual inhancer, but if you go to a search engine and put in
L-arginine and fertility or sperm count -you should get information. We used it and have a healthy one year old.

Yerba mate
Boron
Zinc

Cervus nippon-lu rong-Deer antler
Deer Antler is widely used in the Orient to strengthen all aspects of a person's life. It is a warm Yang tonic, although it is also known to contain Yin essence and is a major blood tonic. Extracts of Deer Antler have been found to strengthen the central nervous system and the heart. Deer Antler is believed to strengthen the mind and to enliven the Spirit (Shen). It is also widely used to improve mental power. It is widely used in Asia to strengthen adrenal, reproductive and brain functions. It is universally believed in the Orient to build sexual strength and to increase virility and fertility.

Schisandra chinensis-wu wei zi
Schizandra is a famous tonic historically consumed by Chinese royalty. It is also said to be an excellent sexual tonic when consumed regularly. It is said to help produce abundant sexual fluids, increase sexual endurance and to strengthen the whole body. It is used in many tonic formulations as an "astringent" and can stop leakages.

Epimedium spp.-yin yang huo-Horny Goat Weed
Epimedium is a powerful sexual tonic and Asian people consider it an aphrodisiac. It increases sperm production in men.

Cinnamomum cassia-rou gui-Cinnamon bark
Cinnamon bark is a strong essence tonic that promotes circulation and warms internal energy; it is said that it leads energy back to the source, or Kidney. Cinnamon bark increases the Yang energy and sexual vitality.

Gynostemma pentaphyllum- jiao gu lan
Gynostemma is used to slow down aging and to prevent feebleness and senility; to reduce fatigue, to increase vigor; to improve digestion; to strengthen the mind; and to improve sex functions. It generally reinforces overall health and is viewed as a virtual "cure-all" in Asia. Ongoing use of Gynostemma has a protective quality strengthening the adaptive capacity of the person at every level of their life.

Morinda officinalis-ba ji tian-Morinda Root and Vine
Morinda is highly nutritious and is used in superior tonic formulas for strengthening the body's Yang function. It is widely used in impotence formulations as it increases sexual strength in men and women. It tonifies the Kidney energy and corrects soreness of the lower back and knees, and joint pain.

Cuscuta chinensis-tu si zi-Cuscuta
Cuscuta is gentle tonic for the Kidney Yin and Yang. It nourishes and consolidates Kidney Qi. It is widely used to nourish the sperm and marrow, and strengthens sexual functions.

Cynomorium-suo yang
Cynomorium is a superb tonic to the primal yang essence and is used in many tonics for both men and women. It is widely believed in the Orient to be a superb longevity herb and an excellent sexual tonic and stimulant.

Eucommia ulmoides-du zhong-Rubber Tree Bark
Eucommia is considered a primary herb used to increase yang functions in the body.

Nothing you eat will make a difference in sperm count. It is the sperm count that will make the difference as long as you are fertile. If he is not wearing boxers he should start. Boxers allow the scrotum to hang lower and cool the testes. This is the function of the scrotum and cooler testes have a higher sperm count. If you continue, I suggest he have his sperm counted.