For some kids when they take a stimulate they don’t eat as much and lose weight. If they keep losing weight they will quit giving the medication. I give my kids vitamins and there was a time when I gave them carnation breakfast, comes in powder or plastic bottles and gives them what they need. You mix the powder kind with milk or can even put in a milk shake. I haven’t heard of Odwella fruit smoothie but I am sure its the same concept.