Navigation Links
Fish consumption advisories fail to cover all types of contaminants
Date:4/17/2014

A new modeling study suggests that fish consumption advisories for expecting mothers are ineffective in reducing infant exposure to long-lived contaminants like persistent organic pollutants (POPs).

The study, performed by a team of researchers including University of Toronto Scarborough PhD student Matt Binnington and Professor Frank Wania, looks at how different levels of environmental contamination, a mother's compliance with advisories, and the behavior of chemicals in the body influenced exposure in her children.

Their model estimates that women who stop eating fish shortly before or during their pregnancy may only lower their child's exposure to POPs by 10 to 15 per cent.

"We have to be careful in saying fish advisories don't work at all because they can work very well for reducing exposure to quickly eliminated contaminants, such as mercury," says Binnington. "But for POPs we found that they are not very effective."

POPs are compounds that take a long time to break down and as a result can persist in the environment and begin to accumulate in humans by way of the food chain. While many POPs such as DDT and PCBs have long been banned from production, they still exist in the environment. Fish advisories have been developed for these chemicals because they are easily passed from mothers to their children during pregnancy and nursing, potentially impacting healthy infant neurodevelopment.

Binnington says consumption advisories for many POPs are ineffective because they can remain in the body for years or even decades due to properties that make it difficult for the human body to eliminate them. The same is not true for mercury-based advisories, as the time it remains in the body is much shorter compared to POPs.

"Something like mercury stays in the body for only a few months and by temporarily adjusting your diet you can reduce exposure," says Binnington.

The limitation with consumption advisories is that while they inform people what not to eat, they do not offer much in the way of healthy alternatives, says Wania. In fact, substituting fish with meat such as beef may even end up doing more harm.

"Substituting fish with beef may actually result in higher exposure to other contaminants," he says, adding there is also a loss of nutritional benefits by not eating fish.

The research, which received funding through NSERC) and the Northern Contaminants Program (NCP) of the Canadian Department for Aboriginal Affairs and Northern Development (AANDC), is published in the journal Environmental Health Perspectives.


'/>"/>

Contact: Don Campbell
dcampbell@utsc.utoronto.ca
416-208-2938
University of Toronto
Source:Eurekalert  

Related biology news :

1. Most schools meet USDA drinking water mandate; more steps needed to encourage consumption
2. Coffee consumption reduces mortality risk from liver cirrhosis
3. High consumption of fish oil may benefit cardiovascular health, Pitt public health finds
4. USDA school meal standards positively impact low-income students fruit and vegetable consumption
5. New school meal standards significantly increase fruit, vegetable consumption
6. Manga comics may help promote fruit consumption among youth
7. Slower-paced meal reduces hunger but affects calorie consumption differently
8. Study: Moderate alcohol consumption boosts bodys immune system
9. Latest research suggests moderate coffee consumption is not associated with increased CVD risk
10. Ease of access improves fruit and vegetable consumption
11. For disappointed sports fans, defeats increase consumption of fat and sugar
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Fish consumption advisories fail to cover all types of contaminants
(Date:2/2/2016)... YORK , Feb. 2, 2016 /PRNewswire/ ... facilities are primarily focused on medical screening ... measure point-of-care parameters. Wearable devices that facilitate ... user,s freedom of movement are being bolstered ... for human biomedical signal acquisition coupled with ...
(Date:2/2/2016)... --Technology Enhancements Accelerate Growth of X-ray Imaging This ... computed radiography markets in Thailand , ... (TIM). It provides an in-depth analysis of ... regional market drivers and restraints. The study offers revenue ... attractiveness, both for digital and computed radiography. Market participants ...
(Date:2/1/2016)... Canada , February 1, 2016 ... technological advancements to drive global touchfree intuitive gesture control ... --> Rising sales of consumer electronics coupled ... gesture control market size through ... consumer electronics coupled with new technological advancements to drive ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... ... February 11, 2016 , ... Reichert Technologies, ... continues today to pursue the highest level of accuracy and quality with the ... Refractometer and the AR5 Refractometer. Accurate, reliable and tough enough for the ...
(Date:2/11/2016)... ... , ... Global Stem Cells Group, has announced ... new facility will provide advanced protocols and state-of-the-art techniques in cellular medicine, focusing ... The new GSCG clinic is headed by four prominent Ecuadorian physicians, including Pablo ...
(Date:2/10/2016)... 10, 2016 Early-career researchers from ... Peru , Uganda and Yemen ... health and nutrition   Indonesia , ... and Yemen are being honored for their ... are also celebrated for mentoring young women scientists who are pursuing careers ...
(Date:2/10/2016)... Feb. 10, 2016 NX Prenatal Inc., a ... NeXosome® technology for early warning of adverse pregnancy ... recent study by Dr. Thomas McElrath ... Maternal Fetal Medicine,s (SMFM) annual meeting held in ... , 2016.  The presentation reported initial positive top-line ...
Breaking Biology Technology: