Start your smoothie with protein powder, then add a combination of linseed or flaxseed oil, coconut oil, avocado, seeds, nuts, and a cup of spinach. Finally, add some sugar for taste: ideally berries, which add a sweet taste but are significantly higher in fiber than other fruits. My go-to smoothie recipe is 2 scoops of protein powder, 1 tablespoon flaxseed oil, ¼ avocado, 1 tablespoon crunchy almond butter, ¼ banana, 1 cup frozen berries, and some unsweetened almond milk.