Being underweight (BMI under 18.5) can reduce a woman’s fertility by causing hormone imbalances that affect ovulation and the chance of getting pregnant. Compared to women in the healthy weight range, women who are underweight are more likely to take more than a year to get pregnant.
At what BMI is fertility affected?
Women with a body mass index (BMI) above 27 are three times more likely than women in the normal weight range to be unable to conceive because they don’t ovulate. Women who are overweight or obese are much less likely to conceive.
Can underweight people be infertile?
Fertility Issues Associated with Being Underweight
Specifically, being underweight can have a negative impact on a person’s fertility. Data shows that women who have a BMI (body mass index) of 18.5 or less are twice as likely to take a year or more to become pregnant.
What is the ideal BMI for getting pregnant?
You should aim for a BMI of between 20 and 25, as this will optimise your chances of conception. Even in these modern times, nature knows best. If a woman’s BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition.
What BMI makes it hard to get pregnant?
If you are underweight (your BMI is 18.5 or less), you may have problems getting pregnant. Being underweight can cause your body to stop making estrogen. This can cause irregular menstrual cycles. You may stop ovulating and getting your period.
Can you get pregnant if obese?
Having a high BMI can harm your fertility by inhibiting normal ovulation. Even in women who regularly ovulate, the higher the BMI , the longer it appears to take to become pregnant. Some research also suggests that as your BMI increases, so does the risk of unsuccessful in vitro fertilization (IVF).
What BMI do I need for IVF?
The ideal BMI for getting pregnant, either naturally or through IVF, is between 19 and 25; typically, IVF can be less successful in women with a BMI over 30. High BMI can also be associated with anesthetic risks during egg collection, and pregnancy complications such as diabetes and high blood pressure.
Can a low BMI affect your period?
Women that have a low BMI produce a reduced amount of estrogen which can lead to an abnormal menstrual cycle. Amenorrhea, or the lack of a menstrual cycle, is a result of a low BMI.
How do you get pregnant if you are underweight?
Regardless of your weight, if you’re trying to get pregnant, aim to eat a healthy, varied diet consisting of:
- fruit and vegetables.
- protein (meat, fish, eggs, and pulses such as beans, peas and lentils)
- dairy foods.
- iron-rich foods (red meat, pulses, green vegetables and fortified breakfast cereals)
How can I increase my fertility weight?
If lack of food is the reason for your low weight, try changing to a healthy, balanced diet and aim to gain weight slowly. Try not to use sugary or high-fat foods such as chocolate, cakes and sugary drinks. Instead aim for regular meals with healthy snacks that are high in unsaturated fats, such as nuts.
Can losing weight improve egg quality?
“There’s no way to definitively say that the excess weight is the cause of their infertility, but we can say with confidence that losing weight can improve their fertility.” One study showed that as a woman’s BMI went over 29, her chances of conceiving went down by 4% compared to women with a normal BMI of 25.
Does BMI affect IVF success?
These data demonstrate that women with an elevated BMI produce more follicles, stimulate quicker, and require less gonadotropins during IVF. However, BMI did not have a significant effect on pregnancy outcome rates.
What does low BMI mean in pregnancy?
If you have a low BMI in pregnancy you have an increased chance of the following problems: Having a low birth weight (small) baby. Premature birth. Anaemia (low amount of iron in the blood)
Can belly fat affect fertility?
Excess weight affects female fertility
Overweight and obese women have higher levels of a hormone called leptin, which is produced in fatty tissue. This can disrupt the hormone balance and lead to reduced fertility.
Does being underweight affect male fertility?
Being underweight can also reduce a man’s sperm quality and therefore his fertility. Being overweight or obese can cause hormonal changes that reduce fertility and make men less interested in sex. Men who are very overweight are also more likely to have problems getting and keeping an erection.