Dr. Mcoombs stated in one of his radio shows that the only thing to worry about with stevia is the immune response the body has when eaten. This typically comes with symptom of mucous production which protects candida. You need to reduce the amount mucous the body produces so you can kill the candida.
Stevia’s ingredients should include nothing but raw stevia and inulin. Anything that contains glycerin, maltodextrin, etc. isn’t high quality and could set back your treatment potentially.