Day 3 surprised me. If you asked me on Day 2 whether I could make it through another 24 hours, I probably would have said no. But when I woke up on the third day, something changed.
The constant hunger from Day 2 wasn’t there anymore. Instead, I felt light, calm, and clear. My energy was steady in a way that actually shocked me. It wasn’t the same as the quick “sugar high” kind of energy you get from a meal. This was smoother, more stable.
Science explains why. By 72 hours, your body has shifted into ketosis. That means instead of depending on glucose for fuel, you’re now running on ketones energy molecules made from fat. Research shows that the brain uses ketones efficiently, which is why so many people report mental clarity at this stage. I felt it for myself. It was like my focus sharpened and my thoughts weren’t so scattered.
Physically, I still kept things simple. I drank water, added electrolytes, and went for light walks. I avoided heavy workouts because I wanted to save my energy for just finishing strong. Even though I felt good, I also kept checking in with myself. If I had felt dizzy, weak, or unwell, I would’ve stopped.
What stood out most on Day 3 wasn’t just the lack of hunger, it was the sense of accomplishment. I realized fasting isn’t only about food or health benefits. It’s about discipline, mindset, and realizing what your body is capable of when you stop giving in to every craving.
I’ll be honest, I even thought about pushing it longer. But I reminded myself why I started: to challenge myself, reset, and learn. Three days were enough for now. I wanted to end it on a high note, not risk pushing too far too soon.
When I finally went to bed that night, I wasn’t thinking about food. I was thinking about how proud I felt. Three days with no food it sounded impossible before I tried. But here I was, clear-minded, light, and ready to take the next step in my journey.