SCHEDULE 14A INFORMATION

           PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES
                              EXCHANGE ACT OF 1934

                                (Amendment No. )

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[ ]   Preliminary Proxy Statement
[ ]   Confidential, for Use of the Commission Only
      (as permitted by Rule 14a-6(e)(2))
[ ]   Definitive Proxy Statement
[X]   Definitive Additional Materials
[ ]   Soliciting Material Pursuant to ss.240.14a-12

                           Allmerica Investment Trust

           ----------------------------------------------------------
                (Name of Registrant as Specified In Its Charter)

          -------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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                                                                 March 18, 2002

Dear Shareholders:

   Employees who are owners of Allmerica variable annuity contracts and/or
variable life policies that use the AIT Funds as investment options should have
received proxy materials within the past two weeks that include five proposals.

   The Funds' Board of Trustees has approved each of the five proposals and
unanimously recommends that shareholders vote FOR each proposal.

   As an AIT shareholder, you have the opportunity to vote on these proposals.
We encourage you to read the proxy materials thoroughly and call 1-800-828-0540
if you have any questions.

   Unless you plan to vote at the shareholder meeting on March 27, 2002, please
cast your vote as soon as possible by completing, signing and mailing your
proxy so that your shares will be represented at the meeting. Your individual
vote will remain confidential and the results of the total voting will be
announced after the meeting.

   Thank you for taking the time to participate in this very important vote and
for your continued confidence in the AIT Funds.

                                          Sincerely,

                                          /s/ John F. O'Brien
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                                          John F. O'Brien
                                          Chairman