Fasting for 2 days protects healthy cells against chemotherapy, according to animal studies conducted at the University of Southern California in Los Angeles (Raffaghello L et al. Proc Natl Acad Sci U S A. 10.1073/pnas.0708100105 [published online ahead of print March 31, 2008]). The cell-protective effects of starvation had previously been demonstrated in antiaging studies.
Hampton T. Fasting and Chemotherapy. JAMA. 2008;299(17):2017. doi:10.1001/jama.299.17.2017-c