Wife and i are trying to for another child and she has been looking into fertility supplements and prenatal vitamins for men, just curious should i be considering taking any? there is barely anything out there on this subject just looking for help?

This sounds like a self help effort. If you have tried for a year with no success, you both need an evaluation for correctable issues. Just because she had one doesn't mean somethin didn't change, same with you. Getting exam/test based data moves this forward.

It is important for the woman to take Folic acid when trying to get pregnant. Taking Folic acid by the man would not do any harm, but there is not strong evidence that it would be helpful. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs.