Not really . . . because they do not raise Blood Sugar Levels since they do not contain significant digestible carborhydrate (any other 'problems' with them are an entirely different matter and not discussed in this book).
BTW, there is a big difference between the powdered artifical sweeteners and the sugar alcohols (related to neither sugar nor alcohol). The SAs do contain varying amounts of true carbohydrate and can have an impact on blood sugar.
The ADA and CDA (American and Canadian Diabetes Associations) do not require that artifical sweeteners be counted but they do require that 1/2 of the carbs present in SAs be considered.
And here we go for 2009 . . . Onward and Downward . . .