If your mind is always on food even when you are full, the problem is most likely not your willpower. Behind this mental noise there may be under-eating, restrictive diets, lack of sleep and swings in blood sugar; and the way to turn the volume down is not to restrict even more.
As you get up from the breakfast table you are thinking about what to have for lunch. In the middle of a meeting your mind drifts to the chocolate in the drawer. After dinner the question “shall I have something else?” will not go quiet; if you eat you regret it, and if you do not, the thought will not leave you alone. By the end of the day you are tired, but part of that tiredness comes not from work but from the bargaining you have done with food all day long.
In recent years this state has had a name: food noise, the noise about food in the mind. Most people take it for a lack of willpower and blame themselves. Yet thinking about food all the time is, more often than not, an understandable response from the body and the mind.
What is food noise?
Food noise is the mind being occupied with food for much of the day, even at times when the person is not hungry: planning what to eat, trying to put off eating, keeping a tally of what has been eaten, waiting for the next meal. It is not a medical diagnosis; it is a description used in everyday language. The term became widespread when people using the injectable medicines that reduce appetite began to say “the voice in my head has gone quiet”. That experience made it visible that the voice had been there for years in many people and that it was not a trait of character.
What is the difference between normal appetite and food noise?
Thinking about food is not a problem in itself. Thinking about food when you are hungry, planning what to cook in the evening or looking forward to a good meal is entirely natural. The difference is this:
- Hunger comes and goes. It goes quiet when you eat. Food noise carries on even when you are full.
- Hunger is felt in the body. Food noise is in the mind; it goes round and round as an image, a taste, a question of “shall I?”.
- Hunger gives you information. Food noise wears you out; it splits your attention, makes decisions harder and usually arrives together with guilt.
Why do we think about food all the time?
Not eating enough
This is the most common cause and the one most often overlooked. When the energy the body takes in falls below what it uses, it switches on its survival mechanisms: hunger hormones rise, fullness signals weaken and the brain begins to give priority to food. In a well-known semi-starvation study carried out during the Second World War, healthy volunteers who were under-fed for months were observed to become unable to think about anything but food, to collect recipe books and to daydream about meals. What happens today on very low calorie diets is no different.
Bans
When you ban a food you do not remove it from your mind; on the contrary, you put it at the centre. Someone who says “I will never eat sweets” thinks about sweets far more than someone who eats them freely. Even if you are eating enough, constantly policing what you eat and never giving yourself permission creates the same noise.
Meals short of protein and fibre
A meal made up of white bread, pastries and sugary drinks raises blood sugar quickly and then lets it fall quickly. Each fall reaches the brain as the message “fuel is running low” and starts the thoughts of food again. Meals rich in protein and fibre keep you full for longer and soften these swings.
Lack of sleep
Too little sleep does more than raise the hunger hormone and lower the fullness hormone; it makes the brain’s reward centre more sensitive to high-calorie foods. This is why your mind is more on food the day after a bad night.
Stress and emotions
If over the years food has become the way to soothe anxiety, boredom or tiredness, the mind suggests the same solution every time it is under strain. In that case the thought of food is the messenger not of hunger but of some other need that has not been met.
Surroundings full of food
Food videos on your phone, notifications from delivery apps, the table of treats at the office, the chocolate beside the till… In an environment where food is always in sight, it is hard not to think about it.
Individual differences
The systems that regulate appetite do not work with the same strength in everyone. Some people are biologically more sensitive to food cues. In women, the rise in appetite and thoughts of food in the second half of the menstrual cycle is also a hormonal fact.
How can food noise be reduced?
Trying to suppress the voice does not work; what needs to change are the conditions that feed it.
- Eat enough and eat regularly. Giving up skipping meals usually makes the biggest difference. A body that has not gone hungry during the day does not force food on the mind in the evening.
- Add protein and fibre to every meal. Eggs, yoghurt, cheese, meat, fish or pulses, together with vegetables and whole grains, lengthen the time you stay full.
- Loosen the list of bans. Making room for a food you love, in a planned way and without guilt, reduces the weight it carries in your mind.
- Lighten the load of decisions. Drawing up a rough menu for the week saves you from asking “what shall I eat now?” ten times a day.
- Take sleep seriously. Regular sleep is the least talked-about way of balancing appetite hormones.
- Arrange your surroundings. Turning off food notifications, putting snacks out of sight and cutting down on food content lowers the noise.
- When you eat, just eat. A meal eaten slowly and without a screen gives the mind a clearer message: “I have eaten, I am full.”
- Question the thought. When food comes to mind, ask yourself: am I hungry, tired, bored, or avoiding something?
Weight-loss injections and food noise
Because prescription medicines that reduce appetite act on the appetite centre in the brain, many of the people who use them say that their thoughts of food decrease markedly. This is a sign that food noise has a biological basis. But the effect is limited to the time the medicine is used; when it is stopped, the thoughts may return. Only a doctor decides on the use of these medicines, and they are not suitable for everyone. For those who use the medicine and those who do not, what lasts is the eating pattern and the relationship built with food. For people using the medicine, see our page on nutrition during weight-loss injections.
When should you seek support?
If thoughts about food and weight take up most of your day, if they stop you concentrating on your work and relationships, if you have eating episodes in which you lose control, or if you try to make up for what you have eaten by vomiting, going without food or exercising excessively, you need to see a mental health professional. These pictures may be a sign of an eating disorder, and they can be treated.
In brief
- Food noise is tiring thoughts of food that continue even when you are full; it is a description, not a diagnosis.
- Its most common cause is under-eating and restrictive diets.
- Lack of sleep, unbalanced meals, stress and surroundings full of food turn the volume up.
- The solution is not to restrict more, but to eat adequately, regularly and in a balanced way.
- If the thoughts affect your life markedly, seek professional support.
Frequently asked questions
Is food noise an illness?
No, it is not a medical diagnosis. But when it is very intense and goes together with loss of control, it may be accompanying an eating disorder; in that case an assessment is needed.
Won’t I gain weight if I stop dieting?
Giving up restriction does not mean eating without a plan. Once regular and adequate meals are in place, eating episodes decrease; for many people this makes weight management easier, not harder.
How long does it take for thoughts of food to decrease?
It varies from person to person. In the weeks after moving to adequate eating, many people notice that the pressure in the evening hours eases; where restriction has gone on for years, the process may take longer.
To look in more detail at where food noise can come from, see the eating behaviour and emotional eating page.
