NEWS RELEASE

COPPELL, Texas, Nov 21, 2011 (BUSINESS WIRE) --

Mannatech, Incorporated(NASDAQ: MTEX), the leading innovator and provider of nutritional supplements and skin care products based on RealFoodTechnology(R) solutions, announced today that its team of doctors, personal trainers, R&D staff, product managers and editorial writers who contribute to HealthyScience.net have spotlighted their top tips for staying healthy over the holiday season. The articles can be found at http://www.healthyscience.net/mannatechhealthyholiday/.

In the wake of a recent report by the CalorieControlCouncil stating "the average American may consume more than 4,500 calories and a whopping 229 grams of fat from snacking and eating a traditional holiday dinner," many Americans are looking for ways to stay healthy while still enjoying the social festivities. The writers of HealthyScience.net (owned and operated by Mannatech, Incorporated) collected posts from the past year that share ways to stay healthy over the holidays, and plan to keep adding tips over the following weeks.

"One of the most attractive features of Mannatech has always been our commitment to the science behind nutritional supplementation and the experts we employ or partner with who make it all happen," said Brett Duncan, Vice President of Global Marketing for Mannatech. "Our award-winning HealthyScience.net blog is an outlet for those experts, be it doctors, certified nutritional experts, TeamMannatechathletes or members of our Research & Developmentdepartment. And these healthy, practical tips are their gift to the site's readers."

The articles include tips such as these:

• Effective ways to work in your workouts over the holidays
• Healthy recipes that will fool even the pickiest eater
• Practical ideas on how to leverage family time for fitness
• Ways to keep the USDA's recommended "plate" in mind when you sit down for your holiday meal

Individuals interested in Mannatech's products or exploring its business opportunity are encouraged to learn more at Mannatech.com.

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. Mannatech is dedicated to its platform of Social Entrepreneurship based on the foundation of promoting, aiding and optimizing nutrition where it is needed most around the world. Mannatech's 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, Estonia, Finland, the Republic of Ireland, Czech Republic, the Republic of Korea and Mexico. For more information, visit Mannatech.com.

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 new international 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.

SOURCE: Mannatech, Incorporated

Mannatech, Incorporated
Brett Duncan, 972-471-7367
bduncan@mannatech.com