Historically the high cost of cocoa powder has meant a demand for low cost substitutes. In this context, substitutes were normally used as extenders at a level of up to 30 .More recent interest in cocoa substitutes has arisen from the wish to avoid caffeine and theobromine , rather than because of cost. Use of substitutes in chocolate confectionery has been of particular interest, because of the alleged connection between chocolate consumption and hyperactivity in children but substitute beverages have also been produced.