The national library of medicine isn’t quite as extreme as the suggest that certain cancers are prevented, but does indicate support of fasting having positive outcomes for human systems:
A comment below states some cancers risks have a great increase from obesity, so the claim of intermittent fasting reducing cancer risk may to have some credence.
https://www.alliedacademies.org/articles/fasting-can-heal-th...
The national library of medicine isn’t quite as extreme as the suggest that certain cancers are prevented, but does indicate support of fasting having positive outcomes for human systems:
https://www.ncbi.nlm.nih.gov/books/NBK534877/#:~:text=Most%2....
A comment below states some cancers risks have a great increase from obesity, so the claim of intermittent fasting reducing cancer risk may to have some credence.