Every 100g contains 15 13kj/362kcal calories, and 37g sugar (calories are actually higher than meat). The net weight of a big bag is 225g, each bag is 15g. So each bag is 226.95kj/54.3kcal, which is equivalent to eating two apples, 10 peanuts and eating a bite of McDonald's apple pie.
It can be seen that because you eat a small amount at a time, you don't have to worry about getting fat unless you eat this as a meal.
The package says it can be used as a refreshing drink, suitable for all ages. You can drink it whether you are sick or not.