A smoothie with oatmeal is a versatile cocktail that can be consumed instead of breakfast, as a lunch, and as a healthy dessert. Due to its balance of nutrients, oat smoothies are used in a variety of diets. Weight loss occurs due to the complex carbohydrates in oatmeal, which are slowly absorbed, keeping you feeling full for a long time. Many people think that it takes a long time to bother with oatmeal. Save the fastest smoothie recipe with oatmeal, which is ready in a couple of minutes.