I use President's Choice brand natty PB, which can be found in various chains in both Canada and the US. It's wonderful and has no sugar and no sugar alcohols. If you stir it well when you use it the first time, it doesn't separate later (store in the fridge). The texture is very smooth--just like the hydrogenated trans fat kind. I tried the carb options kind, and found it too sweet.

1Tbsp
calories 98
Fat 8 grams
Carbs 2 (1 is fiber)
Protein 5 grams