Taking too many antioxidants can accidentally alter the genetic memory of sperm

While antioxidants are often praised for their health benefits, excessive intake of supplements like N-acetylcysteine (NAC) can alter sperm DNA methylation. This process creates a genetic memory that influences how an embryo develops, even if the father appears perfectly healthy. In laboratory studies, male mice given high doses of NAC produced offspring with up to ten percent asymmetry in cranial width and visible skull deformities.