<<Disclaimer: Verify this information before applying it to your situation.>>

This is the reply I received from SlimFast re: gf status:

"Thank you for your recent inquiry concerning the presence of wheat gluten
in Slim-Fast products.

As you are aware, having the condition Celiac Sprue prevents you from
eating such grains as wheat, rye, barley and oats.

We do not guarantee that Slim-Fast products are Gluten-Free.  We do not
purchase the ingredients that go into our products, therefore, we cannot
guarantee that they are gluten free.  We caution you, however, to
continually read a product label as ingredients may change without notice
due to market availability.  This is equally important for all other
foods as well as Slim-Fast."