Time for annoying newbie quesions, ladies!!! Do we have any gentlemen here yet?

Okay, sometimes Dr. S's writing is perplexing. This whole plan is about whole foods, no additives, etc. etc. but then she says we can't use half and half because of all the stuff added to it (or am I opening my big mouth after missing something?). I have organic half and half that is half milk/half cream. It only has one carb per 2 tbsp. That seems much better than using whipping cream to me. Whaddya think? We're only supposed to use such a small amount anyway, this shouldn't be a problem. Am I missing something in my speed reading?

Muchas gracias,
Jinx