UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED

PURSUANT TO RULE 13d-1(a) AND AMENDMENTS

THERETO FILED PURSUANT TO RULE 13d-2(a)

Under the Securities Exchange Act of 1934

(Amendment No. 1)

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is subject of this Schedule 13D, and is filing this statement because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box.  ¨

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (the “Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

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This Amendment No. 1 (the “Amendment”) amends and supplements the Schedule 13D filed on October 18, 2010 (the “Original Schedule 13D” and, as amended and supplemented by this Amendment, the “Schedule 13D”) by Weider Health and Fitness, Eric Weider and MLE Holdings Company, with respect to the Class A Common Stock and Class B Common Stock of the Issuer. Capitalized terms used in this Amendment and not otherwise defined shall have the same meanings ascribed to them in the Original Schedule 13D.

This Amendment amends and restates the last two paragraphs of Item 4 of the Original Schedule 13D in its entirety as set forth below:

Support Agreement

On October 29, 2012, the Issuer entered into an Agreement and Plan of Merger (the “Merger Agreement”), by and among Bayer Healthcare LLC, a Delaware limited liability company (“BHC”) and Willow Road Company, a Delaware corporation and wholly-owned subsidiary of BHC (“Merger Sub”), pursuant to which Merger Sub agreed to purchase all of the outstanding Shares at a purchase price of $34.00 per Share. Pursuant to the terms set forth in the Merger Agreement, upon successful completion of the Merger, Merger Sub will merge with and into the Issuer (the “Merger”) and the Issuer will survive the Merger as a wholly-owned subsidiary of BHC (the “Surviving Corporation”).

Concurrently with the execution and delivery of the Merger Agreement, and as a condition and inducement to Bayer AG’s (the “Parent”) and BHC’s willingness to enter into the Merger Agreement, on October 29, 2012, BHC and Merger Sub entered into a Support Agreement (the “Support Agreement”) with WHF.

Pursuant to the Support Agreement, WHF agreed, among other things, not to (i) sell or otherwise dispose of the Shares subject to the Support Agreement, (ii) take any action or omit to take any action that would prohibit, prevent or preclude WHF from performing its obligations under the Support Agreement or that would make any representation or warranty contained in the Support Agreement untrue in any respect, (iii) take any action that would materially delay or adversely affect the consummation of the Merger and the other transactions contemplated by the Merger Agreement, (iv) enter into any voting arrangement, whether by proxy, consent, voting agreement, voting trust, or otherwise, with respect to the Shares subject to the Support Agreement, (iii) solicit, and to cause their respective representatives not to solicit, any inquiry, expression of interest, proposal or offer that constitutes or would reasonably be expected to lead to an alternative proposal to acquire the Issuer (an “Acquisition Proposal”), (v) enter into, participate in, maintain or continue any discussions or negotiations relating to any Acquisition Proposal, (vi) furnish any non-public information that would reasonably be expected to be used in formulating any Acquisition Proposal, (vii) solicit, and to cause their respective representatives not to solicit, proxies or become a participant in a solicitation in opposition to or competition with the consummation of the Merger, (viii) directly or indirectly encourage, initiate or cooperate in a stockholder’s vote or action by consent by the Issuer’s stockholders in opposition to or in competition with the consummation of the Merger, (ix) become a member of a “group” (as such term is used in Rule 13d-5 under the Act) with respect to any voting securities of the Issuer for the purpose of opposing or competing with the consummation of the Merger and (x) make any press release, public announcement or other non-confidential communication with respect to the business or affairs of the Issuer or BHC, including the Support Agreement, the Merger Agreement and the transactions contemplated thereby without the prior written consent of BHC. WHF also agreed to revoke any and all previous voting arrangements with respect to the Shares subject to the Support Agreement.

WHF also agreed (i) to waive and not to exercise any appraisal or dissenters’ rights with respect to the Merger, (ii) not to commence or participate in any class actions brought against the Issuer, including claims relating to the negotiation, execution or delivery of the Support Agreement, the Merger Agreement or the consummation of the Merger, including claims alleging breach of fiduciary duty by the Board, and (iii) not to challenge the validity or to seek to enjoin the operation of any provision of the Support Agreement.

WHF further agreed that, during the term of the Support Agreement, TPG STAR SNI will not amend, modify, alter, change or otherwise revise the terms and conditions of the Stockholders Agreement. The Support Agreement will automatically terminate upon the earlier of (a) the mutual written consent of BHC, Merger Sub and WHF and (b) the termination of the Merger Agreement.

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Concurrently with WHF’s entry into the Support Agreement, TPG STAR SNI entered into a substantially similar support agreement.

The foregoing description of the Stockholders Agreement and the Support Agreement set forth above does not purport to be complete and is qualified in its entirety by reference to the full text of the Stockholders Agreement, which is attached as Exhibit 1 to this Schedule 13D, and the Support Agreement, which is attached as Exhibit 3 to this Schedule 13D.

Other than as described above, none of the Reporting Persons nor, to the best knowledge of each of the Reporting Persons, without independent verification, any of the persons listed in Schedule A hereto, currently has any plans or proposals that relate to, or would result in, any of the matters listed in Items 4(a)–(j) of Schedule 13D, although the Reporting Persons may, at any time and from time to time, review or reconsider their position and/or change their purpose and/or formulate plans or proposals with respect thereto. As a result of these activities, one or more of the Reporting Persons may suggest or take a position with respect to potential changes in the operations, management, or capital structure of the Issuer as a means of enhancing shareholder value. Such suggestions or positions may include one or more plans or proposals that relate to or would result in any of the actions required to be reported herein, including, without limitation, such matters as acquiring additional securities of the Issuer or disposing of securities of the Issuer; entering into an extraordinary corporate transaction such as a merger, reorganization or liquidation, involving the Issuer or any of its subsidiaries; selling or transferring a material amount of assets of the Issuer or any of its subsidiaries; changing the present Board or management of the Issuer, including changing the number or term of directors or filling any existing vacancies on the Issuer’s Board; materially changing the present capitalization or dividend policy of the Issuer; materially changing the Issuer’s business or corporate structure; changing the Issuer’s certificate of incorporation, bylaws or instruments corresponding thereto or taking other actions which may impede the acquisition of control of the Issuer by any person; causing a class of securities of the Issuer to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association; causing a class of equity securities of the Issuer to become eligible for termination of registration pursuant to Section 12(g)(4) of the Securities Act; and taking any action similar to any of those enumerated above.

This Amendment amends and restates Item 5 of the Original Schedule 13D in its entirety as set forth below:

(a) and (b) The following disclosure assumes that there are 29,344,660 shares of Class A Common Stock and 7,486,574 shares of Class B Common Stock outstanding as of November 1, 2012, as adjusted, as reported on the Issuer’s preliminary information statement on Schedule 14C filed with the Commission on November 5, 2012. Pursuant to Rule 13d-3 under the Securities Act, the Reporting Persons may be deemed to beneficially own 7,577,709 shares of Class A Common Stock and 7,486,574 shares of Class B Common Stock, which collectively represent 51.3% of the outstanding Shares and 85.24% of the total voting power of the Shares as of November 1, 2012, as adjusted. The percentage of total voting power of the Shares is calculated based on the total voting power of the Shares outstanding as of November 1, 2012, as adjusted, which is comprised of 29,344,660 shares of Class A Common Stock and 7,486,574 shares of Class B Common Stock and assumes that no outstanding shares of Class B Common Stock have been converted into shares of Class A Common Stock.

As described in Item 4 above, WHF and TPG STAR SNI are parties to the Stockholders Agreement with respect to Shares of the Issuer, solely as a result of which the Reporting Persons and the TPG Persons (as defined below) may be deemed to be a member of a group with respect to the Weider Shares and any Shares beneficially owned by TPG STAR SNI (the “TPG Shares”). However, each such person disclaims membership in any such group, the Reporting Persons disclaim beneficial ownership of the TPG Shares and the TPG Persons disclaim beneficial ownership of the Weider Shares.

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Set forth below is information regarding TPG Group Holdings (SBS) Advisors, Inc., a Delaware corporation (“Group Advisors”), David Bonderman and James G. Coulter (collectively, the “TPG Persons”), based solely on information provided by TPG STAR SNI.

The principal address of each of the TPG Persons and each person listed on Schedule B is c/o TPG Global, LLC, 301 Commerce St., Suite 3300, Fort Worth, Texas 76102.

The principal business of Group Advisors is serving as the sole ultimate general partner, managing member or similar entity of related entities engaged in making or recommending investments in securities of public and private companies.

Group Advisors is the general partner of TPG Group Holdings (SBS), L.P., a Delaware limited partnership, which is the sole member of TPG Holdings I-A, LLC, a Delaware limited liability company, which is the general partner of TPG Holdings I, L.P., a Delaware limited partnership, which is the sole member of TPG STAR GenPar Advisors, LLC, a Delaware limited liability company, which is the general partner of TPG STAR GenPar, L.P., a Delaware limited partnership, which is the general partner of TPG STAR, L.P., a Delaware limited partnership, which is the sole manager and controlling member of TPG STAR SNI, L.P., a Delaware limited partnership (“TPG STAR SNI”), which directly owns the Purchased Shares (as such term is defined in Item 3 hereof).

Messrs. Bonderman and Coulter are the directors, officers and sole stockholders of Group Advisors. Because of the relationship of Messrs. Bonderman and Coulter to Group Advisors, each of Messrs. Bonderman and Coulter may be deemed to beneficially own the Shares. Messrs. Bonderman and Coulter disclaim beneficial ownership of the Shares except to the extent of their pecuniary interest therein.

The name and present principal occupation of each of the directors and executive officers of Group Advisors is set forth in Schedule B, and such information is incorporated herein by reference. Each of Messrs. Bonderman and Coulter and the individuals named on Schedule B is a United States citizen. Neither the TPG Persons nor any of the persons listed in Schedule B has, during the last five years, been convicted in any criminal proceeding (excluding traffic violations or similar misdemeanors) or been a party to a civil proceeding of a judicial or administrative body of competent jurisdiction resulting in his or its being subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(c) Except as set forth or incorporated in Item 3 and this Item 5, none of the Reporting Persons nor, to the best knowledge of each of the Reporting Persons based solely on a review of forms filed under Section 16(a) of the Securities Exchange Act of 1934, as amended, any of the persons listed on Schedule A hereto, has engaged in any transaction during the past 60 days involving any Shares.

(d) Other than the Reporting Persons, except as set forth or incorporated in Item 4, no other person has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, any Shares.

(e) Not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer.

This Amendment amends and restates Item 6 of the Original Schedule 13D in its entirety as set forth below:

The disclosure set forth under Item 4 relating to the Stockholders Agreement and the Support Agreement is hereby incorporated by reference into this Item 6.

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This Amendment amends and restates Item 7 of the Original Schedule 13D in its entirety as set forth below:

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SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: November 16, 2012

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JOINT FILING AGREEMENT

In accordance with Rule 13(d)-1(k)(1) under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with each other of the attached statement on Schedule 13D and to all amendments to such statement.

IN WITNESS WHEREOF, the undersigned hereby executed this Agreement as of this 16th day of November, 2012.

Schedule A

Directors and Executive Officers of Weider Health and Fitness and MLE Holdings

Section 1. WHF

Set forth below is the name and present principal occupation or employment of each director and executive officer of WHF.

Section 2. MLE Holdings

Eric Weider is the sole director and executive officer of MLE Holdings. See Section 1 of this Schedule A above for Mr. Weider’s present principal occupation or employment.

Schedule B

Directors and Executive Officers of TPG Group Holdings (SBS) Advisors, Inc.

The names of the directors and the names and titles of executive officers of TPG Group Holdings (SBS) Advisors, Inc. and their principal occupations are set forth below. Each individual is a U.S. citizen.