What are some examples of refined sugars?

Yes: Refined sugar examples are sweet candies, cakes, icing, and carbonated sodas. These sugars will raise Insulin levels quite high during digestion, and be more likely stored as fat if not quickly utilized for energy.

Yes: Refined sugars include table sugar (sucrose), brown sugar, and high-fructose corn syrup (hfcs). However all sugars act similarly on your metabolism whether refined or not. Fructose is metabolically more toxic than glucose: table sugar is 50% fructose; honey 50%; hfcs 65%; agave nectar 75%. So the best approach may be to simply avoid all sugars.