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			 The group, led by New York Attorney General Eric Schneiderman and 
			Illinois Attorney General Greg Zoeller, also asked Congress to 
			consider giving the U.S. Food and Drug Administration more oversight 
			of herbal supplements. 
			 
			"We believe the safety and efficacy of these supplements is a matter 
			of deep public concern across the country," the attorneys general 
			said in the letter, urging "swift action." 
			 
			In February, four major retailers, GNC Holdings Inc, Target Corp, 
			Walgreens and Wal Mart Stores Inc, halted sales of certain 
			supplements after being subpoenaed by the New York attorney general. 
			DNA tests had failed to detect plant materials listed on the 
			majority of products tested. 
			 
			On Monday, GNC reached an agreement with Schneiderman to adopt more 
			stringent testing standards than the FDA requires, and began to 
			resell the supplements. 
			
			  
			A study found the products were within FDA guidelines, Schneiderman 
			said. GNC said tests also showed its products were safe, pure, 
			properly labeled and in full compliance. 
			 
			The attorneys general sent their letter requesting a probe to Kansas 
			Senator Jerry Moran and Pennsylvania Representative Joe Pitts, 
			chairmen of subcommittees on product safety and health. They cited 
			the New York probe and said researchers also have found other 
			problems, including high levels of lead, mercury and arsenic in 
			certain supplements. 
			 
			The letter was signed by attorneys general from Connecticut, 
			District of Columbia, Hawaii, Idaho, Indiana, Iowa, Kentucky, 
			Massachusetts, Mississippi, New Hampshire, New York, Northern 
			Mariana Islands, Pennsylvania and Rhode Island. 
			
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			The attorneys general asked the subcommittees to work with the FDA 
			to see whether the agency should develop enhanced quality assurance 
			programs and other safety requirements. Currently, the FDA regulates 
			dietary supplements under a different set of rules than those 
			covering drug products. 
			 
			Steve Mister, president of the Council for Responsible Nutrition, an 
			industry group, said the New York attorney general's investigation 
			was discredited and concerns about "alleged widespread safety issues 
			are not true." 
			 
			He said "the industry is already amply regulated on a federal 
			level." 
			 
			(Reporting By Karen Freifeld; Editing by David Gregorio) 
			[© 2015 Thomson Reuters. All rights 
				reserved.] Copyright 2015 Reuters. All rights reserved. This material may not be published, 
			broadcast, rewritten or redistributed. 
			
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