Losing weight not always a positive

September 8, 2010, Kyungpook National University

Encouraging the obese to lose weight may not always be beneficial for their wellbeing reports a paper published online in the International Journal of Obesity.

The research reveals how can lead to the release of persistant organic pollutants into the blood, which can have a significant negative impact on a person’s health.

Persistant organic pollutants are commonly created by humans in industrial processes, and have been linked to a wide variety of illnesses, including disruption of the endocrine, reproductive and immune systems, , and cancers. They are stored in fat tissue in the body, however Duk-Hee Lee and colleagues noted that but during weight loss -when the volume of fat is reduced - these compounds are released into the blood where they are able to reach vital organs and take their effect. They observed that this effect occurred to a lesser extent when self reported weight change was sustained for only one year compared to when sustained for 10 years.

This work suggests that it may be important for doctors treating obesity to consider the effects of persistant organic pollutants as these may work against the better health that we generally expect from weight loss. Further research is however needed to determine whether negative health issues observed in weight loss subjects are directly due to an increase in persistant in the blood or to pre-existing conditions and environmental factors.

More information: DOI:10.1038/IJO.2010.188

Related Stories

Recommended for you

Sweet, bitter, fat: New study reveals impact of genetics on how kids snack

February 22, 2018
Whether your child asks for crackers, cookies or veggies to snack on could be linked to genetics, according to new findings from the Guelph Family Health Study at the University of Guelph.

The good and bad health news about your exercise posts on social media

February 22, 2018
We all have that Facebook friend—or 10—who regularly posts photos of his or her fitness pursuits: on the elliptical at the gym, hiking through the wilderness, crossing a 10K finish line.

Smartphones are bad for some teens, not all

February 21, 2018
Is the next generation better or worse off because of smartphones? The answer is complex and research shows it largely depends on their lives offline.

Tackling health problems in the young is crucial for their children's future

February 21, 2018
A child's growth and development is affected by the health and lifestyles of their parents before pregnancy - even going back to adolescence - according to a new study by researchers at the Murdoch Children's Research Institute, ...

Lead and other toxic metals found in e-cigarette 'vapors': study

February 21, 2018
Significant amounts of toxic metals, including lead, leak from some e-cigarette heating coils and are present in the aerosols inhaled by users, according to a study from scientists at Johns Hopkins Bloomberg School of Public ...

Why teens need up to 10 hours' sleep

February 21, 2018
Technology, other distractions and staying up late make is difficult, but researchers say teenagers need to make time for 8-10 hours of sleep a night to optimise their performance and maintain good health and wellbeing.

0 comments

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.