YES!! There is DEFINITELY a few things you can do....and I know they work because my DH did these 3 things and his count went from only 3% normal to 12% normal in just 5 weeks.
Tip #1 NO Drinking. A beer here and there is ok...but alcohol can seriously impact sperm quality.
#2 ZINC, buy some zinc at the drug store in the vitamin dept. Get him to take one tablet a day. This really helps with Motility (how fast they move)
#3 Selenium, same as above, find in vitamin section of drug store. Take one a day. This will improve the quality of the sperm.
Good luck! I hope this helps. Men can change their sperm quality in a matter of months, which is great if there are issues
Good luck!