I was in the same position, without the working out (just yet, need to loose a little more weight to save my knees). Same thing, although my Doc never said anything about Cinnabetic, just regular old cooking Cinnamon, but also said you could get it in capsules in health food stores. Tried the loose cooking sort, but yuck. The only problem with the capsules is they make me burp cinnamon, but I guess there's worse tastes to sample a second time. Doc was suitably pleased at the follow up.
BTW, do not put in any cream since it's going to hold the oils and solids in suspension.
Drink the tea or coffee down to the grounds. Throw the rest away.
I wouldn't cook with the stuff. Nasty!!!!