8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________________________________________________________________

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): November 11, 2008

MANNATECH, INCORPORATED

(Exact Name of Registrant as Specified in its Charter)

Texas	000-24657	75-2508900
(State or other Jurisdiction of Incorporation or Organization)	(Commission File Number)	(I.R.S. Employer Identification No.)

600 S. Royal Lane, Suite 200

Coppell, Texas 75019

(Address of Principal Executive Offices, including Zip Code)

Registrant’s Telephone Number, including Area Code: (972) 471-7400

_________________________________________________

(Former name or former address, if change since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02.Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On November 12, 2008, Mannatech, Incorporated (“Mannatech”) issued a press release announcing that Terence L. O’Day will resign from his position as Chief Operating Officer and Executive Vice President of Global Operations effective November 30, 2008.

A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference into this Item 5.02.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number	Exhibit
99.1*	Press release dated November 12, 2008 entitled “Mannatech Announces Departure of Chief Operating Officer.”

*Filed herewith.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

  Dated: November 12, 2008 MANNATECH, INCORPORATED By:/s/ Stephen D. Fenstermacher
Stephen D. Fenstermacher
Senior Vice President and Chief Financial Officer

EXHIBIT INDEX

Exhibit Number	Exhibit
99.1*	Press release dated November 12, 2008 entitled “Mannatech Announces Departure of Chief Operating Officer.”

*Filed herewith.

EX-99.1

Exhibit 99.1

Mannatech Announces Departure of Chief Operating Officer

Coppell, TX, November 12, 2008 - Mannatech, Incorporated (NASDAQ – MTEX), a leading developer and provider of proprietary nutritional supplements, weight management products and skin care solutions, today announced that Terence L. O’Day will resign his position as Chief Operating Officer and Executive Vice President of Global Operations effective November 30, 2008.

Wayne Badovinus, Mannatech’s president and CEO commented, “We are appreciative of Terry's many valuable contributions to the Company. The Board of Directors, management and I personally extend our best wishes for success to Terry as he pursues a new opportunity with a different company and industry.”

About Mannatech

Mannatech, Incorporated, is a global wellness solutions provider of innovative, high-quality, proprietary nutritional supplements, skin care products, and weight and fitness products sold through independent Associates and Members located in the United States and the international markets of Canada, Australia, the United Kingdom, Japan, New Zealand, the Republic of Korea, Taiwan, Denmark, Germany, South Africa, and Singapore.

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”, “may”, “believes”, “plan”, “will continue”, “expects”, “potential”, “should”, 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, and Mannatech has no intentions, and disclaims any obligation, to update or revise any forward-looking statements, whether as a result of new information, future results or otherwise.

Contact Information:

Gary Spinell

Vice President

Corporate Communications

972-471-6512

ir@mannatech.com

www.mannatech.com

www.exploremannatech.com

www.allaboutmannatech.com