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MFS(R) VARIABLE INSURANCE TRUST
MFS(R) High Income Series
Supplement to the Current Statement of Additional Information
Certain investment limitations of the MFS High Income Series (the "High
Income Series"), as noted on page 3 under the section entitled "Investment
Techniques, Practices and Risks" of MFS Variable Insurance Trust's Statement of
Additional Information dated May 1, 1999, are amended and restated as follows:
Percentage Limitations
(based on net assets)
High Income Series:
Foreign Securities ................ 50%
Emerging Markets Securities ....... 10%
The date of this Supplement is August 25, 1999.
