Question: what is the best vitamin for male fertility?
Answer: Vitamin D. ... 
Selenium. ... 
Lycopene. ... 
L-Carnitine. ... 
Zinc. Zinc is an essential trade mineral that plays a role in sperm formation, testosterone metabolism, and cell motility. ... 
Folic Acid. Folic Acid is a B-vitamin that is necessary for DNA synthesis. ... 
CHOOSING A NUTRITIONAL SUPPLEMENT.
EVALUATING MALE FERTILITY: