Overweight men have poorer sperm count

Jul 04, 2011

Overweight or obese men, like their female counterparts, have a lower chance of becoming a parent, according to a comparison of sperm quality presented at a European fertility meeting Monday.

In what they described as the largest study of its kind, doctors looked at sperm samples from 1,940 men and matched them to the donor's weight.

The benchmark was the (BMI), a measure of among adults. Under this, normal weight is defined as a BMI of 18.5-25; overweight as 25-30 and obesity as 30 or more.

The higher the count in excess weight, the more the sperm quality suffered, especially among those in the obese category, according to the findings, presented at the annual conference of the European Society of and Embryology (ESHRE) in Stockholm.

" causes a modification in sperm characteristics, probably as a result of hormonal disturbance, which results in lower sperm numbers, motility and vitality," said Paul Cohen-Bacrie, scientific director at Eylau-Unilabs in Paris, part of a Swiss-based network of labs in 12 European countries.

"This leads to losses in conception potential," he said by phone.

The research found that the sperm count was lower by 10 percent among overweight men, and by 20 percent among , compared with counterparts of normal weight.

The percentage of men who had a zero sperm count rose almost fourfold, from one percent in the normal weight category, to 3.8 percent, in the obese category.

Explore further: Can a new drug brown the fat and trim the obese person?

Related Stories

Obese young men have less hope of marriage: study

May 07, 2009

Men who were grossly overweight at the age of 18 had nearly 50 percent less chance of being married by their 30s and 40s, an international conference on obesity heard in Amsterdam on Thursday.

Soy foods are associated with lower sperm concentrations

Jul 24, 2008

Men who eat an average of half a serving of soy food a day have lower concentrations of sperm than men who do not eat soy foods, according to research published online in Europe's leading reproductive medicine journal, Human Re ...

Recommended for you

School lunchbox inspections 'perverse'

27 minutes ago

A University of Queensland health expert has labelled the practice of inspecting children's lunchboxes at school as both "perverse" and unlikely to improve children's health.

Can a new drug brown the fat and trim the obese person?

22 hours ago

New research has found that a variant of a drug used to treat pulmonary arterial hypertension prompts weight loss in obese mice. Among mice fed a high-fat diet, those who did not get the medication became ...

Americans keep getting fatter

May 27, 2015

Waistlines of American adults kept growing last year with obesity creeping up to 27.7 percent, according to a Gallup poll released Wednesday.

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.