For about six weeks this spring I tried pushing my first meal of the day later and later, not just skipping breakfast before a run the way I normally do, but stretching the whole morning into early afternoon before I ate anything at all, convinced that if a little fasting worked, more of it would work even better.
Where The Idea Came From
I’d been running on an empty stomach for years at that point with no real problems, and somewhere along the way I started reading about people who pushed the idea much further, going most of the day without eating and treating their runs as just one part of a longer stretch without food. I got curious in a way I probably shouldn’t have. My own version of fasted running had been working fine for me exactly as it was, a run before eating anything, nothing more elaborate than that, but I talked myself into thinking that if that small habit felt fine, a bigger version of it might feel even better. That’s the kind of reasoning that sounds fine at ten at night and a lot shakier by week three.
What The Routine Actually Looked Like
I started stretching my first meal further and further into the day, past the run, past my shower, past the point where I’d normally be eating something at my desk. Some days that meant not eating until well into the afternoon. I kept my runs the same as always, nothing longer or harder than usual, I just changed what came after. I told myself I was being disciplined. Looking back I think I was mostly just curious to see how far I could push a habit that had never given me trouble in its smaller form, without really asking whether pushing it further served any purpose at all.
The First Two Weeks
Honestly, the first stretch of this felt fine, maybe even a little interesting. I liked the novelty of it, liked telling myself I was doing something more deliberate than my usual loose routine. My runs themselves didn’t feel any different, which in hindsight should have told me something, since the whole point of the experiment was supposed to be about how the runs felt. What I actually noticed instead was that my mornings at work started feeling foggier, harder to focus during, and I chalked that up to normal tiredness rather than connecting it to what I was doing.
Where It Started To Break Down
By the fourth week I was irritable in a way that had nothing to do with running and everything to do with just being hungry for most of the day, snapping at small things, losing patience faster than usual with things that shouldn’t have bothered me. My runs stayed fine, still no real trouble there, but everything around them got worse. I was tired in the afternoons in a flat, joyless way that had nothing to do with the run itself and everything to do with going that long without eating. I was wrong to think the routine was working just because the running part of it hadn’t fallen apart. The rest of my day had fallen apart instead, and I hadn’t been paying attention to that part.
Why I Finally Stopped
What finally ended it was a fairly ordinary afternoon where I realized I’d been short with a coworker over something trivial and knew immediately it was because I hadn’t eaten anything since the night before and it was already mid afternoon. That was the moment the whole thing stopped feeling like discipline and started feeling like I was making my day worse for no real benefit. My runs hadn’t gotten better in any way I could point to. My days had gotten noticeably worse. I ate a real meal that afternoon and went back to my old habit the next morning, a run before breakfast and nothing more complicated than that.
What I Took From Quitting It
I don’t regret trying it, if only because it clarified something I’d been fuzzy on before. The small, ordinary version of running before eating had been working for me because it fit naturally into a morning that was already short and a little rushed. Stretching that same idea across an entire day wasn’t a bigger version of the same good habit, it was a completely different thing that happened to share a starting point. I went back to my normal routine within days and haven’t touched the extended version since. If you’re reading this wondering whether pushing a fast further is a good idea, I can only tell you it wasn’t for me, and that six weeks was enough to convince me to stop rather than keep pushing to see if it would eventually click.
What I’d Say To Anyone Curious About It
I still see people online talking about longer stretches without food the way I used to read about them before I tried it myself, and I feel a small urge to say something whenever it comes up. Mostly I just think about my own six weeks and how ordinary the failure was. Nothing dramatic happened. I didn’t collapse on a run or feel some sudden crisis. I just slowly became a worse version of myself for most of each day, snapping at people, dragging through the afternoons, all in service of an idea I’d never actually tested against my own life before committing to it. That’s the part I’d pass on if anyone asked, not a warning about fasting itself, just a reminder that a habit working in its small form doesn’t automatically mean a bigger version of it will work too.