Just a few glasses of white wine a week can reduce women's chances of a successful IVF, finds a new study.
What's more, men can reduce their hopes of fathering a child if they enjoy a daily beer, the study added.
The research, by boffins at Harvard Medical School in the US, also claimed that couples where both partners drink six units a week cut their chance of a live birth by 26 per cent.
Brooke Rossi, who led the study, said men and women who each had six units a week or more "significantly reduced their likelihood of pregnancy".
The figures were presented at the American Society for Reproductive Medicine conference in Atlanta, Georgia.