Not exact matches
Such an approach is fairly common among
dietary protocols trying to help people move from the SAD — Standard American Diet (or in this case British!)
Intermittent fasting is an integral part of many popular and effective
dietary protocols such as Jason Ferruggia's Renegade Diet and Martin Berkhan's Leangains, which both employ 16 hour fasts.
This post does detail the healing affects of long term
dietary protocols that achieved remission or management of chronic disease and identifies the state of the art studies of
such with a focus on autism and IBD, most likely due to changing up the microbiome which altered health.