Can a dad's BPA exposure hurt his future son's fertility?
It looks that way. Paternal BPA and BPS exposure damages testicles in male offspring.
What's actually in it
BPA and BPS show up in many cans, store receipts, water bottles, and food packaging. Most safety talk has focused on what mom is exposed to during pregnancy. New work has shifted some attention to dad. The chemicals can change how sperm cells behave, and some of those changes pass to the next generation.
What the research says
A 2026 study in Environ Pollut exposed male mice to BPA and BPS at everyday doses. The sons of those mice had damaged testicles in puberty. The cells that should be making sperm were missing a key carnitine transporter and showed high oxidative stress and cell death. The pattern points to long-term fertility trouble.
If you're trying to conceive, both partners can help. Skip canned drinks. Use a stainless or glass water bottle. Move food to glass before microwaving. Pick fresh or frozen veggies over canned. Decline thermal-paper receipts when stores offer email instead. Three to six months of small swaps can lower body BPA significantly.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Paternal BPA and BPS exposure induce testicular dysfunction in pubertal male offspring | Environ Pollut | 2026 |
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