Earlier quoted context omitted.
There's now a number of studies on effects of fasting on chemo therapy patients, and they all make the same claim of regeneration through autophagy for some types of leukocytes.
If so, why not cite those?
Effects on stem-cells: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4102383/
Reducing toxicity of chemo therapy: https://jeccr.biomedcentral.com/articles/10.1186/s13046-019-...
clinical trials on humans: https://clinicaltrials.gov/ct2/show/NCT01175837