Weight loss may make POPs enter bloodstream

Losing-weightLosing weight might sound healthy but not always as weight loss might release persistent organic pollutants into the bloodstream.

According to a new study, persistent organic pollutants in the blood were higher in people who lost weight as compared to people who gained weight or maintained their weight.

Humans create persistent organic pollutants or POPs in industrial processes and these have been associated with cancer, type 2 diabetes, heart diseases and dementia.

In a human body persistent organic pollutants are stored in fat tissues. But they may get released in bloodstream when the amount of fat is decreased and they may make their way to organs like brain and heart.

In 1099 adults, who participated in a national health study in 1999-2002, levels of seven common POPs were compared by researchers.

Adults who had experienced weight loss had levels of POPs significantly higher. Among people who had maintained their weight for about 10 years and more than that had this effect slightly higher and people who had sustained weight loss for about one year had these levels less as compared to the former lot.