%0 Journal Article %T Teaching an Old Drug New Tricks %J - %D 2019 %R https://doi.org/10.1016/j.ccell.2019.04.008 %X In this issue of Cancer Cell, Elgendy et al. describe the use of intermittent fasting as a strategy to reduce tumor glucose levels and sensitize otherwise resistant tumor cells to metformin. The authors demonstrate that intermittent fasting before metformin treatment sensitized tumors to metformin and significantly reduced tumor growth %U https://www.cell.com/cancer-cell/fulltext/S1535-6108(19)30203-X