01/Aug/2014 - Last News Update: 08:04

Coffee and cake lowers IVF success

Category: Health

Published: 3rd Jul 2012 12:04:25

Regular trips to the coffee machine or having a diet packed with saturated fat have been linked to lower IVF success rates by fertility experts.

One study suggested heavy coffee drinking was as bad as smoking for IVF success rates.

Another showed saturated fats lowered the number of eggs that could be used in IVF, while a 'Mediterranean diet' boosted birth rates.

Experts say lifestyle affects both the chances of IVF and natural conception.

Dr Ulrik Kesmodel, a consultant gynaecologist, presented data at the European Society for Human Reproduction and Embryology (ESHRE) meeting in Turkey.

This work reinforces the need for a good lifestyle for those trying to have a baby; eat and drink in moderation, and don't smoke”

It involved 3,959 women having IVF at the Aarhus University Hospital in Denmark.

One in 20 women were drinking more than five cups of coffee a day. This group of women were half as likely to become pregnant as those who did not drink coffee.

The researchers said this was as damaging to the chances of a successful pregnancy as smoking.

Dr Kesmodel said: "It does seem reasonable, based on our results and the evidence we have about coffee consumption during pregnancy, that women should not drink more than five cups of coffee a day when having IVF."

It is not known whether drinking tea or other caffeinated drinks would have the same effect.

Dr Kesmodel said: "The assumption is that caffeine is the culprit although we don't really know. There are so many substances within coffee."

The British Coffee Association said a there was no need to completely cut caffeine from the diet as there were "no harmful effects" with low levels of consumption.

Its executive director, Dr Euan Paul, said: "For pregnant women or those trying to conceive, an upper limit of 200mg of caffeine per day is perfectly safe.

"This is the equivalent of 2 to 3 cups of coffee."

A separate analysis by the Harvard School of Public Health, in the US, investigated how differences in 147 women's diets affected IVF.

Diets high in saturated fats, such as those from butter, fatty meats and cheese, lowered the number of eggs a women produced for IVF.

Meanwhile a diet high in unsaturated fats, such as olive oil and avocados, was associated with an increase in the live birth rate, although there were too few women in the study to say exactly how big the increase was.

The lead researcher Dr Jorge Chavarro said that women should consider adapting their diet anyway as it is already considered to be good for cardiovascular disease and Type 2 diabetes.

He said: "We know that these types of diets are generally healthy and from that perspective I think it makes total sense not only for women undergoing assisted reproduction, but anyone, to follow these kinds of diets."

Richard Kennedy, the secretary of the International Federation of Fertility Societies, said that "many" lifestyle choices made it harder to conceive both naturally and through IVF.

He said: "This work reinforces the need for a good lifestyle for those trying to have a baby; eat and drink in moderation, and don't smoke."

Source:
BBC News External Link Show Citation

Latest News

Harvard Citation

BBC News, 2012. Coffee and cake lowers IVF success [Online] (Updated 3rd Jul 2012)
Available at: http://www.ukwirednews.com/news/1438389/Coffee-and-cake-lowers-IVF-success [Accessed 1st Aug 2014]

News In Other Categories

  • 'See-through' bodies technique developed

    A way to turn an entire body transparent has been developed by scientists studying rodents.
  • Bristol Academy extends reach overseas with first foreign students

    With the doors to its brand new £1million training centre officially open, one of the UK's leading apprentice training providers, Bristol based S&B Automotive Academy, is showcasing its world-class facilities by launching a series of foreign student exchanges for the first time in its 41-year history. To get a flavour of what life is like as an apprentice in the UK, the Academy hosted 16 apprentice engineers and bus drivers from the G9 Automotive College in Hamburg, Germany, as part of a Europe-wide vocational training initiative called the ‘Leonardo Programme’ with support from the European Social Fund. In a reciprocal arrangement, S&B will be sending nine apprentices to Germany during February 2012 so that they can get an appreciation of life in the automotive industry on the Continent. A further three German exchange groups are being planned for next year. Designed to assist the development of vocational skills and training across Europe, including work placements for trainees, the Leonardo Programme has a budget of €1.75bn, which is helping to encourage UK organisations to work with their counterparts abroad. In what is expected to be another challenging year for employers in the UK automotive sector, S&B’s Chief Executive, Jon Winter, claims that the exchange initiative will bring many benefits to the Academy and its apprentices: “In a world of global automotive brands, it’s important for our learners to understand the international context of the industry they have chosen to make their career. This new exchange programme will enable apprentices and Academy staff alike to achieve a better understanding of the challenges and opportunities within the automotive arena in Europe. With the Academy’s influence also extending to the USA and Asia, there’s every possibility that this initiative could move further afield in the future.” Continued Winter: “The need for skilled technicians across the world is on the increase and we actively encourage our apprentices to look at broader horizons during their training. Many of them have already learned the phrase ‘Vorsprung durch Gelehrtheit’, quite simply, ‘Advancement through learning.” In the 2010/11 academic year, S&B doubled the number of successful Apprenticeships over the previous year with some 350 apprentices graduating from the Academy. At the same time, achievement levels reached an all-time high with an overall success rate of 85%. For those learners on the Advanced Apprenticeship three-year programme, success rates were even higher, at over 98%. PHOTO CAPTION: As part of their exchange visit, S&B Automotive Academy arranged for the German apprentices to visit Hampshire bus operator, Bluestar, at its Barton Park depot. The students are pictured with S&B’s Andy West (3rd right) and Steve Prewett, Bluestar’s Area Engineering Manager (2nd right). Ends http://www.sandbaa.com
  • New rules on rural school closures come into force

    New rules on school closures have come into force across Scotland.
  • Lordship of the Manor of Wales sale fails despite £15k bid

    The manorial title, the Lordship of the Manor of Wales, failed to reach its reserve price at auction in Cardiff.
  • Artist Mark Andrew Webber's vast graphic map of Berlin

    When artist Mark Andrew Webber spent months walking the streets of Berlin, he wasn't sightseeing - he was sign seeing.
  • Ebola: Commonwealth Games cyclist tested and cleared

    An athlete at the Commonwealth Games in Glasgow has tested negative for Ebola, organisers have confirmed.