Hi PickledPepper,
Just wanted to say you are not alone. I too am a secret peanut butter eater. Well, i can't have peanut butter sandwhiches any more because of the carbs in the bread and i loved them before the diagnosis. I buy cashew nuts and peanuts for snacking as they are low in carbs.
I buy the peanut butter for the 'kids' and dont tell the missus about my 'vice'. I know its bad but i have been known to 'stick my finger in' when there is no one around.
I think rather than pointing at a nutrient deficiency, with me its pointing at me being a pig. After all, we are but human and not robots and a little bit is ok i'm sure. Apparrently nuts are good for the digestive system - this is how i justify things to myself.
Oink, Oink, Carl