A type of fasting diet may reprogramme pancreas cells, promote the growth of new insulin-producing pancreatic cells and reduce symptoms of Type 1 and Type 2 diabetes, a study has showed. In the study, led by researchers from the University of Southern California, mice were placed on fasting mimicking diet (FMD) for four days each week which showed remarkable reversal of diabetes. The mice regained healthy insulin production, reduced insulin resistance and demonstrated more stable levels of blood glucose -- even in the later stages of the disease, the researchers said in the paper published in the journal Cell.