Has anyone tried the new Fiber Choice chewable tablets? They taste good, but how good are they compared to Metamucil or Citrucel? The ingredients are Fructan (a natural vegetable fiber), dextrate cellulose, citric acid, maganesium stearate, natural colors and flavors. Also, can you explain what is the best dietary fiber for the C type--Bran, shredded wheat, or oatmeal?