ahhh, yes. Late-night-post-partum-posting. Sarcasm doesn't read well and I forgot. My apology Corasmama.
Jen,
If you are already convinced that the Stevia brand sweetener is safe then further research probably isn't for you. If you are interested here is a jumping off point:
http://safety.lovetoknow.com/Dangers_of_Stevia
This site has both pros and cons. Refreshing. I was particularly concerned about the reproductive damages found in studies.
Also, just because something is a plant does not mean it is totally safe. That is strange logic. I can think of hundreds of plants that would kill you if you ate them. Just because something is derived from a plant does not make it all-natural. There is a process used to get the plant from the dirt to the packet on your table. (Also, Stevia brand contains erythritol- that's a sugar substitute) If you are growing it your backyard and using it in it's natural form- like it had been for centuries- then knock yourself out!
http://www.fredericpatenaude.com/questions/stevia.html
If you are using it for a legit medical reason that's great that you have the option. However, if you just want to cut calories then do that. Skip the fads. We never could trick nature, never will.

ETA: Sorry to take this way off track- you asked about BFing and it's safety, not it's safety in general.
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