Can anybody fast?
No, there are naturally precautions about fasting. Pregnant women shouldn’t fast, at least not more than a day or so. There are people on medications, who shouldn’t fast. And I would say in general that people with any serious medical problems should definitely have a doctor’s blessing before they undertake any fasting. They should not attempt to employ fasting to overcome their problems, if they have not been evaluated and assessed by a doctor. So, it is a natural thing, it is a very healthy thing, but it requires some caution and responsibility. People should not attempt fasting without the right conditions and the right supervision.