When you don't get appropriate levels of quality sleep, levels of the hormone leptin, which sends a signal to the brain that you are full, become suppressed. Levels of ghrelin, a hormone that stimulates appetite, also rise with lack of sleep. So now, because of your sleep deprivation, your body is telling you that you are both hungry and not full. It is a difficult combination to resist. That's when late night cookies or chips can do their damage. The next morning you have low energy and reach for a carbohydrate dense food and sweetened drink with caffeine to just wake up. So it continues day in and day out until obesity, diabetes and heart problems become your chronic health concern.
These are the two basic ways how natural The smoothie diet pills work. However, it really depends on the ingredients present in the pills you use. Make sure you carefully check the ingredients and their uses before you buy any pill.