Couples who are looking to improve their fertility rate have been advised to consider their diet and lifestyle.
Yvonne Bishop-Weston, a nutritionist for First Response, suggested that both men and women could improve their chances of having a child by watching what they eat.
She said that women should get down to a healthy weight through diet and exercise before they have a baby.
Reducing stress levels and getting plenty of sleep could also improve women's fertility.
But Ms Bishop-Weston highlighted how easy it was for men to make a difference too.
She said: "Male fertility is an area that is often ignored as it is wrongly considered that there is nothing which can be done. Male factors account for about 30-35 per cent of cases of fertility problems and nutritional therapy has shown a good success rate."
According to the nutritionist, getting plenty of antioxidants through fruit and vegetables and supplements is the best way for men to improve the health of their sperm.
Independent advice on private healthcare