414 hours. 17+ days. I finished my fast.
During the last 2 days I felt weaker than usual, and in the last several hours I became so weak that I was barely able to walk. Also, a vertigo started. I felt that this was going to end badly, so I finished the fast. The goal was to use fasting for health benefits, not to establish records.
I ate 6 eggs, a couple of pieces of cheese, and 100g of meat. I felt discomfort in my stomach. The vertigo stopped. Then I went to sleep.
12 hours after that, I ate 700g of beef.
Now I'm feeling good and there is no more weakness.
I will post all the details (before/after, weight loss info, blood test results, and conclusions) in several days. 