>>13556892 (pb)
>>13557361 (pb)
Jesus healed many people and he also said of some demons that they don't come out without prayer and fasting.
I am not sure that it is always a total abstaining from all food when we fast. Recently I wondered if it also includes "detox". I think soft metals such as mercury and aluminum might enable intrusive thoughts or other manifestations that seem to be demonic activity.
https://biblehub.com/matthew/17-21.htm