As far as I remember have been drinking tang from my early childhood.It has a lot of nutrients such as vitamin C.It is a very healthy drink and as far as other powdered drinks goes tang is the leading brand.I tried once the rasna international after mixing the powder in glass I could see white powder like thing floating on the surface.Tang is also recommended for the sick I have seen patients feeling better after having used tang as it provides lot of energy.It is very popular in the middle east as the scorching heat you need to replace the body fluids lost and a glass of tang does refreshen you a lot.I will recommend that the parents make it a habit for their children to have at least one glass of tang a day.