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Top Mannatech Winners Lose 30 Total Inches in Fat-Loss Challenge

Top winner loses 27 percent total inches while using OsoLean® powder

(COPPELL, Texas) January 19, 2010Mannatech, Incorporated (NASDAQ: MTEX - News), a global pioneer in the development of high-quality health, weight and fitness, and skin care solutions based on nutritional science, announced winners of its OsoLean® Challenge, an international contest challenging its independent sales Associates in the United States, Canada and South Africa to try OsoLean powder for eight weeks and track the changes in their waists. The top three winners from the U.S. lost a combined total of 30 inches off their waists.

Sherri Burke of Nyssa, Ore., had the greatest percentage of total inches lost at 27 percent. In second and third place were Djuna Smith of Seattle, who lost 18 percent, and Jackie Denig of Payette, Idaho, who lost 16 percent.

“I started the OsoLean Challenge in May and knew deep down I could win,” said Burke, who lost a total of 15 inches off her waist. “The challenge gave me more confidence, and I feel better both physically and mentally. I have a sense of pride surrounding this accomplishment and the changes I have seen in myself.”

The challenge included educational sessions, regular measurements, a food and activity diary for meal and exercise planning, and peer motivation. Participants used the company’s fat-loss product, OsoLean powder, an all-natural, protein peptide blend that in a clinical test† promoted fat loss while sparing lean muscle when combined with a reduced-calorie diet, such as the OsoLean Plan and proper exercise.*

“We are proud of all of the participants in this challenge and hope they are encouraged to continue their healthy lifestyles and share their successes with others,” said Dr. Robert A. Sinnott, MNS, PhD, co-chief executive officer and chief global science officer of Mannatech. “The OsoLean Challenge supports the commitment to make improvements in health and achieve fat loss by diet and exercise.”

Burke, the winner with the greatest percentage of total inches lost, received a five-day, four-night luxury vacation getaway. In addition, she won a trip to MannaFestSM 2010, the company’s international conference for its independent sales Associates, including airfare, hotel accommodations and event registration, and a Stay Fit Gift Pack. The second and third place winners received a stay at MannaFest 2010, consisting of roundtrip airfare, hotel accommodations and event registration, and a Nintendo DS™ with Personal Trainer™: Cooking.

Note that some may have continued to lose weight/inches, as the contest ended on September 30, 2009. For additional information about OsoLean powder, the challenge and the OsoLean Plan, please visit

In addition, many of Mannatech’s products are based on Real Food TechnologySM solutions, which provide consumers with products that contain standardized levels of natural and plant-sourced nutrients at nutritionally effective levels. Food-sourced ingredients are chosen from those scientifically proven to most benefit the human body. Mannatech offers the best alternative to synthetic vitamin and mineral products and so-called “super-juice” products.

Individuals interested in Mannatech’s products or in exploring its business opportunity can learn more at

About Mannatech
Mannatech, Incorporated develops high-quality health, weight and fitness, and skin care products that are based on the solid foundation of nutritional science and development standards. These proprietary products are available through independent sales Associates around the globe including the United States, Canada, South Africa, Australia, New Zealand, Austria, Denmark, Germany, Norway, Sweden, the Netherlands, the United Kingdom, Japan, Taiwan, Singapore and the Republic of Korea. For more information, please visit

Please Note: This release contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally can be identified by use of phrases or terminology such as “intend” or other similar words or the negative of such terminology. Similarly, descriptions of Mannatech’s objectives, strategies, plans, goals or targets contained herein are also considered forward-looking statements. Mannatech believes this release should be read in conjunction with all of its filings with the United States Securities and Exchange Commission and cautions its readers that these forward-looking statements are subject to certain events, risks, uncertainties, and other factors. Some of these factors include, among others, Mannatech’s inability to attract and retain associates and members, increases in competition, litigation, regulatory changes, and its planned growth into newinternational markets. Although Mannatech believes that the expectations, statements, and assumptions
reflected in these forward-looking statements are reasonable, it cautions readers to always consider all of the risk factors and any other cautionary statements carefully in evaluating each forward-looking statement in this release, as well as those set forth in its latest Annual Report on Form 10-K and Quarterly Report on Form 10-Q, and other filings filed with the United States Securities and Exchange Commission, including its current reports on Form 8-K. All of the forward-looking statements contained herein speak only as of the date of this release.