Is my smoothie fattening?

Question: My wife and love the shake I make in the mornings which consist of: 20 oz water 3 heaping Tablespoons natural peanut butter 1 scoop jay robb egg protein 1/2 container (454 grams ) of Oikos no fat greek style yogurt 12 ounces frozen raspberries 4 ounces frozen blueberries As the first meal of [...]