I don’t eat one biscuit. I eat the whole packet. Every single time.
Not because I’m not trying. Not because I don’t know it’s a bad idea. I know exactly what I’m doing when I’m doing it. Hand reaching into the packet again. And again. Completely aware. Can’t stop.
If you’ve typed “why do I keep eating when I’m not hungry” into a search bar at some point (probably not your finest hour, probably late at night) this one is for you.
I’m two and a half years into this now. Four and a half stone down. Off all six medications. NHS blood tests going back to 2012 behind me. And I still fight this every two to three hours. What I tracked across seventy days showed me it wasn’t about willpower. It was never about willpower. Here’s what it actually was.
Month One: The Six-Thousand-Calorie Day
I want to start with month one, because that’s where the data gets uncomfortable.
There was a day at around the four-week mark where I ate my way through somewhere in the region of six thousand calories of ultra-processed food. I’m not proud of it. I’m also not ashamed of it, because I now understand what was happening. But at the time, all I had was the aftermath: fingers swollen by morning, sleep wrecked, the kind of low-grade inflammation you can feel in your joints.
I’d made changes. Genuine, committed changes. And my reward system had staged a full revolt.
Here’s the thing nobody explains when you start changing your diet. Your hunger and your reward appetite are two completely separate systems. They can both be operating at the same time. They can be pointing in completely different directions. And crucially, one of them has nothing to do with how much you’ve eaten.
You know the Sunday roast version of this. You’ve finished a massive plate of food. Properly, genuinely full. Then someone puts a cheese board on the table. Somehow there’s room. That’s not greed. That’s wiring. Fullness can close down the hunger system without touching the reward system at all. The reward pathway stays open for high-pleasure food long after the hunger signal has gone quiet. And ultra-processed food is specifically engineered around exactly that circuit.
So on that four-week day, I wasn’t eating because I was hungry. I was eating because the reward system was still firing at full volume, into food that had been designed to keep it firing. That’s a meaningful distinction. Because one of those problems responds to discipline. The other one requires a completely different approach.
What “Food Addiction UK” Actually Means (And What It Doesn’t)
When people type “food addiction UK” into Google, they’re usually reaching for an explanation that isn’t “you’re weak.”
I’d argue that’s the right instinct. Because the thing being described isn’t a character flaw. It’s a biological mechanism, running on a circuit that was there long before ultra-processed food existed, now being systematically triggered by products that were designed and in some cases legally tested to trigger it.
The dopamine system doesn’t fire because you got something good. It fires because you’re anticipating getting something good. So the moment you open the packet, before you’ve eaten a single thing, the lever is already being pulled. The brain is already running the slot machine. And because the product is engineered to deliver just enough reward to keep the anticipation alive without ever fully satisfying it (the bliss point, as the food scientists call it) you stay at the machine.
That’s not a metaphor. It’s how the products are designed.
I tracked this across seventy days. The pull came reliably every two to three hours. Not because I was physically hungry. Because I’d spent thirty years training the reward system to expect something at those intervals. The intervals were the habit. The food was the trigger. The hunger had very little to do with it.
What helped was understanding that distinction. Because once I understood that the craving was a habit signal, not a hunger signal, I could respond to it differently. Still difficult. Still ongoing. But a completely different kind of problem.
Day 43: When the Pizza Tasted Wrong
This is the part I didn’t expect.
Day 43. I had pizza. Not as a planned treat. Just pizza, because that’s what was available and I’d relaxed my usual approach for an evening. And it tasted wrong.
Not bad, exactly. Just… off. Like something was missing that I’d expected to be there. The specific combination of flavours I’d been conditioned to experience as intensely pleasurable had lost some of its signal. The reward wasn’t landing the same way.
I noticed this and sat with it for a bit, because it was genuinely strange. I’d eaten that pizza before. Hundreds of times, in various forms. I knew what it was supposed to taste like.
What had changed wasn’t the pizza. What had changed was the baseline.
Taste preferences are maintained by repetition. If you apply the same sweet, salty, fatty signals to your palate consistently enough, your brain calibrates around those signals as the expectation. When you reduce them, the calibration shifts. The research on this is fairly consistent and I’d logged some of it before starting the seventy days. But logging it and experiencing it are different things.
Day 43, I experienced it.
The craving system hadn’t disappeared. I want to be clear about that. Two and a half years in, I still get the pull every couple of hours. The autopilot still sometimes tries to turn down the old road. But understanding what it is, a habit signal running on a circuit that’s slowly recalibrating, changes how I relate to it. It’s not me failing. It’s the biology catching up more slowly than the decision did.
Thirty Months In: The Honest Version
Here’s the part most content in this space won’t tell you.
I’m thirty months into this. I have extensive blood test data. I’m off all medication. And I still fight the pull every two to three hours. The biscuit packet is still a risk. The reward system is still firing.
What has changed is that I understand the mechanism now. I know what’s driving it. I know that the craving at hour two isn’t hunger, it’s habit. I know that the moment I open the packet the dopamine is already running. I know that my bacteria, after decades of being fed a particular diet, are still sending in their shopping list even when I’ve changed the delivery.
That understanding doesn’t make the pull disappear. But it does stop me blaming myself for it. And it does mean I have a different set of options for responding to it, because I’m responding to what’s actually happening rather than assuming I’m the problem.
The question I’d leave you with is this. If you’ve been asking yourself why you keep eating when you’re not hungry, and the answer you’ve been giving yourself is that you lack willpower or discipline: is that actually what the data supports? Or is it possible that the data supports something more interesting?
I’ll leave that with you.
Key Takeaways
- Hunger and reward appetite are two separate systems: You can be physically full and still have the reward system firing. That’s not weakness. That’s wiring.
- Ultra-processed food is engineered to keep you at the lever: The bliss point, vanishing density, fat-carb combinations. These are tested, measured product features, not accidents of flavour.
- The craving at two to three hours isn’t hunger. It’s habit: Once you can tell the difference, you’re solving a completely different problem.
- Taste calibration shifts if you give it time: Day 43, the pizza tasted wrong. Not because I’d fixed anything. Because the baseline had shifted. That’s biology, not willpower.
- This is still ongoing at thirty months: Honest version. The pull doesn’t disappear. Understanding what it is changes how you respond to it.
Want to Start Resetting Your Own Rhythm?
If this post has made you think about your own patterns with food (the two-hourly pull, the packet you didn’t mean to finish) the 14-Day Rhythm Reset Guide is a useful starting point. It covers eating windows, what to eat, how to structure your days, and it’s free.
It won’t rewire thirty years of conditioning in a fortnight. But it gives you a framework for changing the inputs. And from what I’ve tracked across two and a half years, that’s where the recalibration begins.
👉 Get the 14-Day Rhythm Reset Guide (free)
💪 Want ongoing support? Join Rhythm Club for £30/month (includes FREE app access, community, and weekly accountability calls)
⚠️ Important: This is educational content based on evidence and personal experience. It is not medical advice. Speak to your GP before making changes to your fasting pattern, diet, or medication.
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