Fertility can be influenced by several factors, including overall health and lifestyle choices. Diet, nutrition, body weight, and habits such as smoking and alcohol consumption may affect reproductive health in both men and women. The extent of their impact can vary depending on individual circumstances.

If you have just started trying to conceive or are experiencing difficulties, understanding how lifestyle choices may affect fertility can help you make informed decisions. A healthcare professional can provide guidance based on your health history and individual needs.

Below are some lifestyle choices that may affect fertility.

Alcohol

Alcohol consumption may affect reproductive health, particularly when intake is heavy. In women, heavy alcohol consumption may be associated with ovulation-related problems, while in men it may affect sperm production and quality. If you are trying to conceive or undergoing fertility treatment, discuss alcohol consumption with your healthcare provider.

Smoking

Smoking is harmful to overall health and may also affect fertility in both men and women. It has been associated with reduced reproductive potential and may affect egg and sperm quality. In men, smoking may be associated with lower sperm count and increased sperm DNA damage. Smoking may also be associated with adverse pregnancy outcomes. If you are planning a pregnancy, a healthcare professional can guide you on quitting smoking and accessing appropriate support.

Weight

Being underweight or overweight may affect fertility in both men and women. In men, excess body weight may be associated with changes in hormone levels and reduced sperm quality. In women, excess body weight may affect ovulation and is associated with certain pregnancy complications. However, individual risks vary, and body weight alone does not determine whether someone can conceive.

If you have concerns about your weight and fertility, consult a healthcare professional for personalised advice.

Diet

A balanced diet supports general health and reproductive well-being. Nutritional needs vary from person to person, and there is no single diet that guarantees improved fertility. Avoid making major dietary changes or following restrictive diets without appropriate guidance. Vitamin D deficiency may be relevant to overall health, but its relationship with fertility can vary. A healthcare professional can advise whether nutritional assessment or supplementation may be appropriate.

Caffeine

Research on caffeine intake and fertility has produced varying findings. High caffeine consumption may be a concern when planning a pregnancy, and recommendations can depend on individual circumstances. If you are trying to conceive or may be pregnant, discuss your caffeine intake with your healthcare provider and follow current pregnancy-related guidance.

Exercise

Regular physical activity supports overall health. However, very intense exercise combined with inadequate nutrition or insufficient recovery may affect hormonal function and reproductive health in some individuals. The appropriate level of activity depends on personal health, fitness and other factors. If you are experiencing menstrual changes or have concerns about fertility and exercise, seek advice from a healthcare professional.

Lifestyle choices are one part of reproductive health, and their effects vary between individuals. Making sustainable health-related changes may support overall well-being, but these changes cannot guarantee conception. If you have concerns about fertility or have been trying to conceive without success, consult a qualified healthcare professional to discuss possible causes and appropriate next steps.