L Arginine, zinc, ester c, zma & clomid will turn you into a pornstar..... Here is a cut&paste on good ol vit c.....
Vitamin C has been shown to improve sperm quality and protect sperm from DNA damage; helping to reduce the chance of miscarriage and chromosomal defects. Vitamin C protects sperm from oxidative damage due to free radicals.
Studies show that vitamin C deficiency has been linked to low sperm count, poor sperm motility and morphology. Vitamin C is necessary to not only ensure healthy sperm, but to support them in getting where they need to go.
One study showed a marked improvement in sperm health in men who had previously failed fertility treatments due to sperm a high number of sperm with DNA fragmentation. The researchers found that just 2 months of supplementation with both vitamin C and E at one gram a day of each lead to decreased DNA fragmentation in sperm and improved implantation and successful pregnancy rates.
A study performed in 1991 showed that ascorbic acid (a form of vitamin C) levels are much higher in seminal fluid compared to other fluids in the human body, including blood. The study also showed that in healthy male subjects, reduction in vitamin C levels can be detrimental to sperm health. When dietary vitamin C was reduced from 250mg to just 5mg a day, ascorbic acid levels in the male subjects seminal fluid reduced by 50%, and the number of sperm that had damage to their DNA increased by 91%. These results indicate the importance of dietary vitamin C in preventing infertility in men.