Banana-Berry Fruit Smoothie

1/2 pear, cored
1/4 cup frozen blueberries or frozen mixed berries
1/2 banana, frozen
1 1/4 cup water
1/8 tsp. cinnamon
1 tbsp. skim milk powder
1 heaping tbsp. high-quality protein powder (optional)
1 tsp. flax oil (optional)
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In a blender, process all the ingredients until thoroughly mixed and serve.