Those are of the findings of study conducted by an environmental group and published in Environmental Research Letters.
KYUK reports (http://bit.ly/trWLzx) mercury is believed to offset the benefits of omega-3 fatty acids associated with salmon. Dogs were found to have lower levels of antiodixidants.
However, the study finds that dogs - and people – should continue to eat a subsistence diet since benefits are greater than the small levels of mercury.
The study examined dogs along the Yukon River.