Antioxidants should NOT be used for male infertility.
An in depth review1 suggests that Oral Antioxidants should not be used for male infertility even in males with DNA fragmentation as the subject is far more complex than initially thought and these oral antioxidants may even make the fertility of sperm worse. We need to wait for more research.
1 Sperm redox biology challenges the role of antioxidants as a treatment for male infertility.
F&S Reviews, Narrative Review, Vol 3, Issue 1, P90-104, January 01, 2022