For how long have you ever gone without eating or drinking anything whatsoever? If you ate even a crumb or even drank a sip of water to break the period then it does not count.
Note: This thread is NOT the same as 'No Food' where water or light beverage is allowed.
I am a little heavy, so I get thirsty really fast. I average close to one hundred and twenty ounces of water a day. I couldn't even go one full day without water. I last close to eighteen hours one day during a winter camp out because the water was frozen. But that is the longest, I was always active as a kid and needed lots of water then.
I have fasted for 24 hours and some days I go without food and water when I was sick, not a good idea by the way. My medicain also decreases my appetite so I can go awhile without eating or drinking. But I have learned it really isn't a good idea.