Navigation Links
Dartmouth-led study shows diet alone can be significant source of arsenic
Date:11/20/2013

Diet alone can be a significant source of arsenic exposure regardless of arsenic concentrations in drinking and cooking water, a Dartmouth College-led study finds.

The study also confirms that toenail clippings are a good biomarker of long-term exposure to arsenic from consuming alcohol, Brussels sprouts and dark meat fish. Exposure to arsenic has been linked to a variety of health problems, including cancer, vascular diseases and low birth weight.

The findings appear in Nutrition Journal. A PDF is available upon request.

Previous studies have shown that diet can be an important source of total arsenic exposure, but the new study is the first to account for arsenic in drinking and cooking water before looking at dietary contribution. Household water is thought to be most significant source of arsenic exposure in regions where water arsenic concentrations are elevated.

Researchers asked 852 participants about their average consumption over the previous year of 120 different foods, including dairy, fruits, vegetables, eggs, meat, breads, beverages and baked goods. They found arsenic in toenail clippings is most strongly linked with consumption of alcohol -- especially beer for men and white wine for women -- and Brussels sprouts. Those who drank more alcohol and ate more Brussels sprouts had more arsenic in their toenail clippings, which makes sense because alcoholic beverages can have higher arsenic content and are known to interfere with the metabolic pathways that detoxify arsenic. The findings support recent studies that show high concentrations of arsenic in Brussels sprouts and related vegetables because arsenic binds to the sulfur-containing compounds that give them their characteristic odors.

Researchers also found increased toenail arsenic in people who eat dark meat fish, which include tuna steaks, mackerel, salmon, sardines, bluefish and swordfish. Fish generally contain a form of arsenic that is thought to safely pass through the human body without being metabolized, but dark meat fish also contain arsenic compounds that can be metabolized.


'/>"/>

Contact: John Cramer
john.cramer@dartmouth.edu
603-646-9130
Dartmouth College
Source:Eurekalert  

Related biology news :

1. Mercury releases contaminate ocean fish: Dartmouth-led effort publishes major findings
2. Dartmouth-led team discovers how plants avoid sunburn
3. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
4. Law that regulates shark fishery is too liberal: UBC study
5. New study will help protect vulnerable birds from impacts of climate change
6. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
7. BYU study: Using a gun in bear encounters doesnt make you safer
8. 15-year study: When it comes to creating wetlands, Mother Nature is in charge
9. Pycnogenol (French maritime pine bark extract) shown to improve menopause symptoms in new study
10. Crystal structure of archael chromatin clarified in new study
11. EU-funded study underlines importance of Congo Basin for global climate and biodiversity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Dartmouth-led study shows diet alone can be significant source of arsenic
(Date:6/22/2016)... LOS ANGELES , June 22, 2016 ... of identity management and verification solutions, has ... cutting edge software solutions for Visitor Management, ... ® provides products that add functional ... The partnership provides corporations and venues with ...
(Date:6/16/2016)... , June 16, 2016 ... is expected to reach USD 1.83 billion by ... View Research, Inc. Technological proliferation and increasing demand ... are expected to drive the market growth. ... The development of advanced multimodal techniques ...
(Date:6/7/2016)... , June 7, 2016  Syngrafii Inc. ... a business relationship that includes integrating Syngrafii,s patented ... branch project. This collaboration will result in greater ... the credit union, while maintaining existing document workflow ... http://photos.prnewswire.com/prnh/20160606/375871LOGO ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... 27, 2016 , ... Newly created 4Sight Medical Solutions ... the healthcare market. The company's primary focus is on new product introductions, to ... that are necessary to help companies efficiently bring their products to market. , ...
(Date:6/27/2016)... , June 27, 2016  Liquid Biotech ... announced the funding of a Sponsored Research Agreement ... circulating tumor cells (CTCs) from cancer patients.  The ... in CTC levels correlate with clinical outcomes in ... These data will then be employed to support ...
(Date:6/24/2016)... 2016  Regular discussions on a range of subjects including ... two entities said Poloz. Speaking at a lecture ... , he pointed to the country,s inflation target, which is ... "In certain areas there ... common economic goals, why not sit down and address strategy ...
(Date:6/24/2016)... , ... June 24, 2016 , ... While the majority ... as the Cary 5000 and the 6000i models are higher end machines that use ... height of the spectrophotometer’s light beam from the bottom of the cuvette holder. ...
Breaking Biology Technology: