Whey isolate protein provides pure protein without any added carbs or sugars. Along with almond butter, you will get a double dose of protein plus antioxidant vitamin E. A banana provides potassium, which will help with any post-workout muscle cramping or fatigue. To get the smoothie nice and cold and thicken the texture of the liquid, you will need ice. Finally, water helps to liquefy the ingredients so that they blend together easily.
Blend all ingredients for 30 seconds to 1 minute. For a thick smoothie, blend for 30 seconds. If you prefer a thinner smoothie, add a little water and blend longer.