I found a recipe on the internet in which half a cup of ground flax seeds are added to the mixture to make muffins.
Since there is flour and sugar in it I was wondering if that defeats the purpose of using flax seeds to increase your fiber intake.
I'm guessing the flax seeds are used as a substitute for eggs. Does the recipe ask for eggs? You'll be still eating flax seeds, hence ingesting fiber. But I don't think it's the primal goal in this recipe.