- A new study found harm from antioxidants in mice.
- Researchers gave antioxidant supplements to male mice.
- Male mice took antioxidants before mating with females.
- The supplements can damage sperm and sperm DNA.
- Baby mice showed changes in head and face shape.
- Female pups had smaller heads and closer-set eyes.
- Fathers looked healthy but babies still changed.
- High antioxidant doses can be unbalanced and harmful.
- Many vitamin pills include strong antioxidant ingredients.
- Men who plan children should be careful with supplements.
Difficult words
- antioxidant — a substance that can stop some cell damageantioxidants
- supplement — a pill or substance taken for extra vitaminssupplements
- damage — to cause harm or injury to a person or thing
- sperm — male reproductive cells used for fertilization
- dose — a measured amount of medicine or supplementdoses
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Do you take vitamin pills?
- If you planned a child, would you be careful with supplements?
- Do you know anyone who takes supplements?
Related articles
Certain infant formula fats linked to early liver fat
An animal study using newborn pigs found that formulas high in medium-chain fats from coconut oil led to faster liver fat accumulation than formulas with long-chain animal fats. Researchers say this finding is not a reason to stop using formula.
Action still needed to end hunger and change food systems
Experts say stronger action is needed after the 2021 UN Food Systems Summit. They note progress in research and national plans, but rising conflicts, climate extremes and funding limits put progress at risk. A stocktake will take place in Ethiopia this month.
New AI tools for tuberculosis shown at lung health conference
Researchers presented four new AI approaches for detecting and monitoring TB at the Union World Conference on Lung Health in Copenhagen (18–21 November). The tools include breath analysis, cough screening, vulnerability mapping and a chest X‑ray tool for children.