Published online by Cambridge University Press: 03 June 2019
Folic acid should be taken at a daily dose of 400 mcg or, in those who are obese, 5 mg. There is debate about the restriction of fertility treatment to women who are overweight, although there is no doubt that obesity has a significant adverse impact on reproductive outcome. It influences not only the chance of conception but also the response to fertility treatment and increases the risk of miscarriage, congenital anomalies and pregnancy complications [1]. The British Fertility Society guidance suggests that treatment should be deferred until the BMI is less than 35 kg/m2, although in those with more time (e.g. less than 37 years, normal ovarian reserve) a weight reduction to a BMI of less than 30 kg/m2 is preferable [2]. Even a moderate weight loss of 5–10% of body weight can be sufficient to restore fertility and improve metabolic parameters.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.