Food noise is that constant background chatter about food that keeps running even when you're not hungry.
It's the "what's for dinner" thought that starts up and won't quite stop, hours before dinner is even a question.
It's thinking about what you'll eat next while you're still chewing your current meal.
It's opening the fridge at 9pm with no real appetite, closing it, then opening it again ten minutes later.
It's the low hum of "should I, shouldn't I, what is there, when can I" that takes up space in your head all day.
Many people find ultra-processed foods make that hum louder.
They overstimulate the brain's reward system, send your blood sugar up fast and drop it just as fast, and weaken the signals that are supposed to tell you you've had enough. The more of them you eat, the more the volume climbs.
When you eat fewer of them, a lot of people find the volume drops on its own, without any white-knuckling involved.
That last part, the volume dropping without any white-knuckling, I'd actually felt it happen years ago and completely misread it at the time.
Back in 2016 I tried a ketogenic diet for the first time. The meals were oily and filling, totally new to me, and after a few days the hunger and cravings just went. I wasn't thinking about food. I ate when the meal plan told me to, and some days I couldn't even manage that.
I was sure it was the low-carb, high-fat part doing it, because that's what keto was supposed to do.
What I didn't clock then, and only really see now after months of ditching ultra-processed foods, is that those early keto days forced me onto whole foods. Eggs, meat, fish, vegetables. Nothing engineered, because I hadn't found the keto-branded versions yet.
Then I found them. Keto gummies, keto cakes, keto chocolate. And the hunger and the cravings came back. I can't prove the two are linked, but I can draw a straight line from A to B, and I don't think those so-called keto-friendly foods were doing me any favors.
What that early keto stretch gave me, without my realizing it, was a few weeks off from something I'd carried most of my life.
I assumed it was a discipline thing. Some character flaw I'd never managed to fix. I'd done long fasts, white-knuckled my way through plenty of "be good" phases, and the chatter always came back the second I went back to eating the way most people eat.
Then the term "food noise" started showing up everywhere, and the description landed a little too accurately. A radio in your head playing food commentary that you never switched on and can't switch off. That was it. That was the thing.
The three get lumped together but they're not the same.
Hunger is a physical signal. Your body needs energy, your stomach is empty, ghrelin rises, and you eat. It comes, you handle it, it goes.
A craving is wanting one specific thing. Chocolate, crisps, that particular salty crunch. Cravings spike and pass, and they're usually tied to a food your brain has learned to associate with reward. I get into how ultra-processed foods manufacture those in Why Ultra-Processed Foods Trigger Cravings.
Food noise is neither of those.
It's the steady, low-grade preoccupation that sits underneath both, present even when you're not hungry and not craving anything in particular.
Researchers who've started studying it describe it as persistent, intrusive thoughts about food that disrupt daily life. It's recently been given a working definition (a 2025 paper in Nutrition & Diabetes pinned it down as “persistent thoughts about food that are perceived by the individual as being unwanted and/or dysphoric and may cause harm to the individual, including social, mental, or physical problems”), and it isn't a formal medical diagnosis. It's a name for something a lot of people were already living with and didn't have words for.
The fact that so many people immediately recognized the description probably explains why the term spread so quickly.
The phrase exploded into public conversation because of the newer weight-loss medications.
A huge number of them reported that the most striking effect wasn't the appetite drop, it was the silence. The food radio in their head finally went quiet, sometimes for the first time in their adult lives. That's what pushed "food noise" into everyday conversation.
I'll write properly about those medications another time, because there's a lot to say and I want to do it justice. For now the useful takeaway is narrower: if a medication that acts on your brain's reward and appetite circuits can turn the volume down, then the volume is being set by those circuits in the first place. And those same circuits respond to what you eat. Which brings us to the food.
Your brain runs a reward system built to make you chase things that helped your ancestors survive, food being a big one. Eat something rewarding, get a hit of dopamine, learn to seek it out again. Whole foods nudge this system at a normal level. You eat potatoes, you feel fine, the signal settles, you move on.
Ultra-processed foods hit that system much harder.
The fat-and-sugar combinations engineered into them produce an outsized dopamine response, more than either fat or sugar would on its own. Over time, that trains your brain to anticipate and want these foods on sight, on smell, on the memory of them, even when your body has no need to eat.
The wanting gets decoupled from hunger. That decoupled wanting, fired off by cues all day long, is a lot of what food noise actually is.
Most ultra-processed foods lean heavily on refined carbohydrates that digest fast. Blood sugar shoots up, insulin rises to deal with it, and then blood sugar drops, often lower and faster than it would after a whole-food meal.
Your body reads that drop as a reason to eat again. Ghrelin, the hunger hormone, climbs back up.
Even if you ate forty minutes ago, your system is now sending out signals that feel a lot like hunger, and your brain starts narrating about food again. The spike-and-crash pattern keeps re-triggering the chatter through the day, so you're never quite settled.
A whole-food meal with fiber, protein, and fat moves blood sugar more gently, no cliff edge, so the signal to start thinking about food again doesn't fire as soon.
When you eat, a set of fullness hormones (peptide YY and GLP-1 among them) rise to tell your brain the meal worked. Ultra-processed foods don't trigger that response as strongly, partly because they're low in fiber and easy to eat fast, and partly because of how they're built.
The clearest evidence for this comes from a 2019 NIH study run by Kevin Hall. In the tightly controlled study, people eating ultra-processed foods consumed about 500 more calories per day than people eating minimally processed foods, despite the diets being matched on paper.
Their fullness hormones didn't climb the way they did on whole foods. Something about the ultra-processed meals left people wanting more.
For years I read my own food noise as proof that I was weak. Everyone else seemed able to eat a meal and get on with their day. I'd eat the same meal and spend the afternoon negotiating with myself.
What I didn't know was how much of that was being driven by the food itself.
You're not lacking some willpower gene that thin people were born with. Many people who seem naturally slim may simply experience less food noise to begin with, which means they're doing less resisting than it appears.
The chatter was never a measure of your character. It was a fairly predictable response to products designed to keep you coming back. I get into the design side of that in Why Can't I Stop Eating Junk Food?.
Once I understood that, the shame drained out of it, which made it much easier to actually change anything.
The chatter got quieter. Not gone, but noticeably turned down.
I started eating more meals built from things I could recognize. Eggs, potatoes, fruit, yogurt, chicken, beans, meat, etc. The kind of food that takes some chewing and comes with its own fiber and fat. I can now eat a meal and not think about food again for hours, which used to feel impossible.
There's also a taste reset that happens.
After a few weeks away from the engineered stuff, whole food starts tasting better, and the ultra-processed versions start tasting strangely intense or chemical. Your palate recalibrates.
Plenty of people describe the same thing, that the snacks they used to love stop being appealing once the constant stimulation backs off.
Carrying that 'radio' around all day was exhausting in a way I only fully noticed once it got quieter.
This is what worked for me so far. I found food noise responds more to what you eat than to how hard you try to ignore it, at least in my experience.
A few things that helped me without counting or measuring anything:
Start the day with food you'd recognize as food. What I eat first sets the tone for the whole day. Eggs and fruit, or yogurt and oats, and the chatter stays low. Something out of a packet, and I'm back in the kitchen within the hour. A whole-food first meal gives the rest of your day a quieter baseline to work from.
Build meals that move your blood sugar slowly. Fiber, protein, and fat together keep the spike-and-crash from happening, and the crash is what re-triggers the noise an hour after eating. I don't need to weigh or track anything for this. A plate that's mostly recognizable food, with some protein and something with fiber on it, does the work on its own.
Shift the balance rather than banning things. You don't have to cut anything out completely to feel a difference. More whole-food meals and fewer engineered ones moves the dial on its own. Going for perfect usually backfires, because hard restriction has its own way of putting food at the center of your thoughts, which is the opposite of what you're going for.
Notice when the day has too much room in it. Food noise gets louder when there's nothing else filling the space. An unstructured afternoon, a quiet stretch at home, and the kitchen starts looking like the most interesting thing around. This isn't about distracting yourself away from eating. It's that a day with some shape to it, work, a walk, something you're actually absorbed in, simply gives the chatter less room to expand into.
Expect it to take a few weeks. The drop in chatter isn't instant, and the first few days can feel louder while your brain adjusts to less stimulation. Many people report the shift lands somewhere in the second or third week, the point where whole food starts tasting better and the old stuff loses its grip.
Learn to spot the volume-raisers on a label. The foods that crank up the noise are the ones built for fast eating and big reward: anything that dissolves in your mouth without much chewing, sweetened drinks and refined-carb snacks that spike blood sugar, "health" snacks engineered to taste good bite after bite. The tell is in the ingredient list, and a quick scan usually sorts it. The same five-second test I use on any label works here too.
It's all about taking away the things that were turning the volume up and letting your own hunger and fullness signals come back. They're better at the job than you've been led to believe.