Non-dairy creamers are filled with bad things. Hydrogenated oils and a laundry list of ingredients that are not pronounceable by the common lay person.
Just checked one of them. The first two ingredients in Nondairy Creamer (the first ingredient in the mix) care Coconut Oil and Corn Syrup solids which are not allowed on this plan.
I'd go with evaporated skim milk and sf flavoured syrup if you must have a treat.