Why Are Green Smoothies So Popular? Green smoothies, like a lot of other 'healthy' marketed foods and products, are becoming quite popular. People like them, as they are very easy and quick to make, provide a lot of health benefits, aid in weight-loss, are easy and quick to consume and convenient to travel with. They can be made ahead of time and either refrigerated or frozen. Green Smoothies can be a very viable option in obtaining your recommended daily intake of nutrients and vitamins