https://www.dryfastingclub.com/my-3-day-dry-fasting-results-72-hour-dry-fast/

At the 72-hour mark, my weight loss slowed down to 2.8 pounds for the day. Urine collected weighed around 0.6 pounds, indicating a loss of 2.2 pounds of mostly fat. What is very interesting is that the 2.2 pounds of fat lines up exactly with Dr. Filinov’s statements of losing 1kg of fat on average per day of dry fasting. You can really lose weight quickly. The urine collected was slightly more than on the second day. Without any water being consumed, it seems that internal water was being created from the fat cells that were being burned. Most experienced dry fasters call this metabolic water. It’s most likely the reason why some people can dry fast for over 11 days.