Excess coffee can lower the likelihood of women with existing fertility problems becoming pregnant, recent research suggests.
Dutch researchers monitored 9,000 women who had received IVF to find out whether they became pregnant naturally.
1 out of 7did fall pregnant. However, drinking four cups of coffee plus on a daily babies reduced their chances of conceiving by 25%.
Experts in the field of fertility stated that these findings applied to women with existing poor fertility who wished to optimise their chances of getting pregnant.
Many women have 20 cups of coffee daily and still get pregnant. However, if you are already subfertile excess coffee is not going to help you.
The Radboud University researchers based in Nijmegan, studied every woman between 1985 and 1995 who had received IVF treatment in the Netherlands .
16% of the women conceived naturally, 45% went on to conceive within six months of their last IVF treatment.
They asked women about how lifestyle factors impacted upon their chances of getting pregnant.
Alcohol consumption a minimum of three times a week has the same risk as excess caffeine intake.
Smoking more than one cigarette daily as well as overweight reduced the chances of pregnancy even more.
Researchers have produced an estimate that a 36-year-old woman who smokes, drinks excess coffee and alcohol and is overweight, and who has been through three cycles of IVF, is likely to have just a 5% likelihood of a natural pregnancy.
Should a woman be a healthy weight, not smoke nor drink too much caffeine or alcohol, the likelihood of her getting pregnant is 15%.