> So a nontrivial number of people reported cancer as a side effect of water fasting. Reporting each and every condition, however unlikely to be caused by the

> So a nontrivial number of people reported cancer as a side effect of water fasting. Reporting each and every condition, however unlikely to be caused by the subject of study, is a necessary part of a study into adverse effects. And for good reason, because it allows later research into surprising causal links, by evaluating mere correlations from different studies. It doesn't mean the participant thought the adverse effect had anything to do with fasting.