I asked about this over on the Suzanne Somers site and was told it is fine. It is in her bread mixes and pancake mixes etc that she sells online. Wheat Gluten is just the wheat protein with the starches removed, so it contains no carbohydrates. Not sure what you read in Fast and Easy. I couldn't find it in my book, but then her books are not very well organized IMOP.

I do fine sticking to her guidelines very closely and I do stall if I start combining "illegally", so I am well suited to her plan. There are some people who are not though, so the only way to find out is to try it yourself!