Concerns have been raised after cake decorations were found to be made from plastic and powdered brass, in an investigation by West Yorkshire Trading Standards Service.
The investigation followed warnings from the Food Standards Agency (FSA) in West Yorkshire.
It found that many of the glitters were made from inedible polyester plastic, of the type used to make drinks bottles. In another case the cake glitter was actually finely powdered brass.
Chris Hunt, public analyst, at Trading Standards, said: “Many of these glitter products have been found to be made of plastic and would be suitable for decorating cards and ornaments but are not designed to be consumed.”