COPPELL, Texas--(BUSINESS WIRE)--Mannatech, Incorporated (NASDAQ: MTEX), a global pioneer in the development of high-quality health, weight and fitness, and skin care solutions based on nutritional science, announced the resignation of Professor Robert Blattberg from its board of directors, effective December 21, 2009. Professor Blattberg joined the board in 2007. Many of Mannatech’s products are based on Real Food TechnologySM solutions which provide consumers with products that contain s
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