In reply to Susan.

This article states that erythritol passes through the body, unaltered, making it effectively, 0 net carbs. Even though nutrition labels categorize erythritol as a carb, it doesn't affect blood sugar in most people, so it may be omitted from the total carb count for the day. I'm not sure where you read that about stevia, but it can safely be used in most baking recipes.