The supplements can lead to facial and skull abnormalities in future children
The supplements can lead to facial and skull abnormalities in future children.
Long hailed as a defense against aging and illness, “miracle” antioxidants like N-acetyl-L-cysteine (NAC) and selenium may have a hidden dark side for men planning a family. New research from Texas A&M University reveals that high doses of these common supplements can cause significant developmental changes in offspring. In laboratory trials, male mice treated with high-dose antioxidants fathered children with distinct craniofacial abnormalities, including smaller skulls and eyes positioned closer together—physical traits often mirroring the effects of fetal alcohol syndrome.
The study suggests that while antioxidants are essential for health, excessive intake disrupts the delicate biological balance of sperm DNA. Lead researcher Dr. Michael Golding emphasizes that health exists in a middle ground; just as overwatering a plant causes rot, flooding the body with 1,000% of the recommended daily allowance of vitamins can be counterproductive. Prospective fathers are encouraged to stick to standard multivitamin dosages and consult labels carefully, as these findings highlight how a father’s preconception health directly shapes the physical and neurological development of his children.
source: Derrico, D. D., Scaturro, K. Z., Murray, E. E., Guillen, E., Truss, N. S., Fairly, K. A., Higgins, S. L., Bhadsavle, S. S., & Golding, M. C. (2025). Therapy to teratology: chronic paternal antioxidant supplementation alters offspring placental architecture and craniofacial morphogenesis in a mouse model. Frontiers in Cell and Developmental Biology.
