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                           MFS(R) TOTAL RETURN SERIES
                                   a series of
                          MFS VARIABLE INSURANCE TRUST

                      Supplement to the Current Prospectus


The description of portfolio manager under the "Management of the Funds -
Investment Adviser" section is hereby revised as follows:  Effective April 1,
1998, Constantinos G. Mokas is a portfolio manager of the Fund, replacing
Judith N. Lamb.  Mr. Mokas, a Vice President of the Adviser, has been employed
as a portfolio manager with the Adviser since 1990.

                 The date of this Supplement is April 1, 1998.



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