There is a national epidemic of obesity.
In 2003-2004, 62.2% of men aged 20-39
were overweight or obese, categorized as
having a body mass index (BMI) of 25 or
higher.30 Males who are overweight or
obese have been associated with lower
testosterone level, poorer sperm quality,
and reduced fertility, compared to nonoverweight
or obese men; the odds of infertility
increases by 10% for every 20 lbs
overweight.6
An important objective of preconception
care is to achieve healthy weight before
conception. Clinical guidelines have
been established for the identification,
evaluation, and treatment of overweight
and obesity. Men should be encouraged
to set weight loss goals, to develop a plan
to reach those goals, and to exercise at
least 30 minutes a day on most days of
the week. A referral to a nutritionist
and/or a structured weight loss program
may be useful. After successful weight
loss, the likelihood of weight loss maintenance
is enhanced by a program consisting
of dietary therapy, physical activity,
and behavior therapy, which should
be continued until pregnancy