as a trace element tonic with a supplementary curative effect on the diabetic and cardiovascular diseases
has been prepared in this work. The chromium species in the yeast was studied by using 51Cr tracer to elucidate the pharmacodynamics of the Cr-rich yeast. Chromium in the yeast partly exists in an organic species-glucose tolerance factor(GTF). The GTF with high activity can assist insulin to play a certain role in maintaining normal glucose tolerance.