SAN FRANCISCO (AP) - A University of California study shows that many of the olive oils sold in the United States are not the top-grade, extra-virgin oils that their labels proclaim.
Researchers at the school's Davis campus conducted the first academic investigation of olive oil quality by sampling popular international and national brands.
They found that 69 percent of the imported oils and 10 percent of domestic oils failed international standards.
The study comes as the U.S. Department of Agriculture is preparing to adopt scientifically verifiable standards for terms such as "virgin" or "extra virgin" to clear up concerns about labeling accuracy.
The president of the North American Olive Oil Association, which represents most olive oil importers, says their own testing found problems in only about 1 percent of samples.
(Copyright 2010 by The Associated Press. All Rights Reserved.)
Viewers with disabilities can get assistance accessing this station's FCC Public Inspection File by contacting the station with the information listed below. Questions or concerns relating to the accessibility of the FCC's online public file system should be directed to the FCC at 888-225-5322, 888-835-5322 (TTY), or email@example.com.