Absolutely not! The diet charts prepared in Ayurveda are made by experts keeping in mind each person’s environments, availabilities, interests, body type etc. Therefore, they keep all these factors in mind before prescribing a certain chart or schedule to any person.
Absolute fasting with no consumption of food is never advocated under Ayurveda. Fasting patterns recommended are often simple and short and always involve consumption of easily digestible natural foods such as fruits, raw vegetables, juices, soups, etc., that allow the digestive system to rest and detoxify from time to time.
It is true that diet is a huge part of regime that one should follow during ayurvedic treatments. Ayurveda treatments only advice you to avoid certain foods that is derogatory to one’s health and certain kinds of food can aggravate the illness or react adversely with the treatment.