From Laura Dolson,Your Guide to Low Carb Diets on About.com.
"I call this "focaccia" because it is baked in that style - flat on a sheet pan, and then cut up into whatever sized pieces you want. It works for toast, sandwiches, and other bready uses. It is "rough" in texture like heavy whole grain breads. Since it isn't made with wheat, it doesn't have the same kind of grain as wheat breads, but the carb in flax is almost all fiber. Flax is very useful on a low carb diet, as well as being amazingly good for you."