E numbers on additives mean they have passed safety tests and have been approved for use in Great Britain including Scotland.
Food additives are assessed for safety before they can be used in food
Consumption of mixes of certain artificial food colours and the preservative sodium benzoate could be linked to increased hyperactivity in some children.
FSS and the Food Standards Agency FSA have issued voluntary industry guidance on glycerol in slush-ice drinks, advising that they should not be sold to children four years of age and under.