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:12/15/2016)... , Dec. 14, 2016 "Increase in ... biometrics market" The mobile biometrics market is expected to ... 49.33 billion by 2022, at a CAGR of 29.3% ... factors such as the growing demand for smart devices, ... transactions. "Software component is expected to grow ...
(Date:12/8/2016)... , Dec. 8, 2016  Singulex, Inc., the leader ... technology, entered into a license and supply agreement with ... The agreement provides Singulex access to Thermo Scientific BRAHMS ... is used to diagnose systemic bacterial infection ... to aid in assessing the risk of ...
(Date:12/7/2016)... 2016   Avanade is helping Williams Martini ... in history, exploit biometric data in order to critically ... the competitive edge against their rivals after their impressive, ... Avanade has worked with Williams during the 2016 season ... (heart rate, breathing rate, temperature and peak acceleration) for ...
Breaking Biology News(10 mins):
(Date:1/20/2017)... ... January 20, 2017 , ... SpineFrontier, ... next evolution in spinal fusion, the MISquito Percutaneous Pedicle Screw System (part ... SpineFrontier is focused on technique driven product solutions that provide maximum efficiency ...
(Date:1/19/2017)... 2017 /PRNewswire -- WuXi AppTec, a leading global ... technology platform, today announced that it has acquired ... drug discovery contract research organization (CRO). After completion ... subsidiary of WuXi, and will continue to focus ... services. The acquisition will further strengthen WuXi,s R&D ...
(Date:1/19/2017)... GAITHERSBURG, Md. , Jan. 19, ... Altimmune, Inc., a privately-held immunotherapeutics company targeting infectious ... agreement for the merger of PharmAthene and Altimmune ... Novartis Venture Fund, HealthCap, Truffle Capital and Redmont ... and diversified immunotherapeutics company with four clinical stage ...
(Date:1/19/2017)... ... 18, 2017 , ... LabRoots , the leading provider ... world, was today awarded the "Best Science & Technology Social Networking Service 2016" ... decided upon by a dedicated team of researchers and analysts. , The 2016 ...
Breaking Biology Technology: