Please list the various phases in Intermittent Fasting ordered by when they occur after starting the fast, and provide a description of what happens in the body during each phase in about 150 words for each.
length_constraints:number_sentences language:response_language change_case:capital_word_frequency punctuation:no_comma detectable_content:number_placeholders startend:quotation detectable_content:postscript
less than
ta
at least
P.P.S
Please make sure the response less than 3 sentences long Please respond to me only in Tamil Use words in all capital letters at least 1 times In your response please avoid using commas The response must contain at least 2 placeholders represented by square brackets You need to wrap your entire response in double quotes please explicitly add a note starting with P.P.S