Researchers say both mothers‑ and fathers‑to‑be play an important role in pregnancy and offspring outcomes.

In A Nutshell Men who ate more ultra-processed foods were more likely to face fertility challenges. Women’s intake didn’t affect time to pregnancy but was linked to early embryo size. The strongest ...

A study links high ultra-processed food consumption in men to reduced fertility and slower early embryonic development.

Eating large amounts of ultra-processed food (UPF) is linked not only to reduced fertility in men, but also to slower growth ...

Eating large amounts of ultra-processed food is linked not only to reduced fertility in men, but also to slower growth of babies in the womb.

Eating less ultra-processed food, especially around the time of conception and pregnancy, is better for both parents and embryos, researchers say ...