No, both the FreeStyle Libre 3 sensor and the FreeStyle Libre 3 Plus sensor are not indicated for use for patients without diabetes. The FreeStyle Libre 3 sensor is indicated for the management of diabetes in persons ages 4 and older.
The FreeStyle Libre 3 Plus sensor expands the age indication to 2 years and older1.
1FreeStyle Libre 3 User's Manual