Orthorexia: when healthy eating becomes an illness

“I don’t understand what you want from me. I just eat healthily.”

He said it calmly, almost indulgently, as though he had to explain something self-evident to me. And in that moment he was right — every single thing he was doing would look like advice in a healthy living magazine. Only when we added up how many hours a week went into planning, how many invitations he had turned down and what happened when a day did not go to plan did the picture shift.

Of all the topics in this field, orthorexia is the most cunning, because it hides behind something society values. Nobody is worried if you say you are careful about what you eat. Plenty of people will praise you for it. That praise is exactly why it stays invisible for so long.

What orthorexia is — and what it is not

The term was coined in 1997 by the American doctor Steven Bratman, who described an obsessive focus on the purity and correctness of food. The word caught on quickly because it named something people recognised in themselves.

But there is something articles rarely say outright: orthorexia is not an official diagnosis. It is in neither the American nor the international classification. There are proposed criteria, there is a fair amount of research, and there is also a serious professional debate about whether this is a disorder in its own right, a form of the eating disorders we already know, or something closer to obsessive-compulsive difficulties.

I am writing this at the very start because you deserve to know where you stand. What follows is a useful description of a pattern I really do meet in practice — not a name to take to your doctor for a referral.

Where care for health turns into something else

People often expect the line to lie in the content: that there is a list of habits that are still fine and a list that no longer is. There is no such line. The line lies in three other things: in rigidity, in cost, and in what happens when a rule is broken.

Care for health is flexible. It adapts to circumstances, tolerates an exception, lets itself be interrupted by something nicer. The orthorexic pattern is rigid: the rule holds regardless of context, and an exception is not an exception but a fall.

The cost is measured in what the rules have crowded out — company, travel, spontaneity, money, time, peace. And third: a breach brings a disproportionate response. Not disappointment, but distress, self-accusation and a need to make up for it. When food triggers the kind of guilt that repairs nothing, this is no longer about nutrition.

Why it is so hard to spot

Every other eating disorder sooner or later runs into resistance from the people around. Orthorexia gets applause. Colleagues admire the discipline, social media rewards it with attention, friends ask for tips. The person acquires an identity — the one who knows what they are doing.

So in therapy this pattern almost never arrives as the reason for coming. People come because of anxiety, exhaustion, a partner who has had enough, sleeplessness. Food comes up later, in passing, and only then does it become clear how much room it occupies.

The second reason for its invisibility is language. Everything that sounds worrying in other eating disorders sounds professional here. Instead of rules there are “principles”, instead of avoidance there is “conscious choice”, instead of anxiety there is “responsibility towards my body”. This language is so convincing that specialists fall for it too — and in my own room I have to ask myself deliberately whether I am listening to a value or to fear that has attached itself to one.

How it usually begins

It almost never begins with a wish for control. It begins with something reasonable: illness in the family, one’s own health problems, a borderline test result, a period of exhaustion after which someone promised themselves to look after themselves better. The first steps make sense and are often useful.

The shift happens quietly. Something in what the person is doing gives them, for the first time in ages, the feeling of having influence. And because that feeling is pleasant, it extends logically: if something helped, more of it will help more. Here nutrition turns from a means into an end. The person is no longer caring for their health by means of rules; they are caring for the rules.

Often there is also a period of greater life uncertainty alongside — a move, a loss, a relationship ending, insecure work. People almost never connect that with food themselves. But when we lay out a timeline, the connection nearly always appears.

When food takes on moral value

The most characteristic feature of this pattern is moralisation. Food stops being food and becomes a question of purity. The word “clean” is not innocent — the opposite of clean is dirty, and if you ate something dirty, you are dirty too.

At that moment eating stops being a decision and becomes a verdict on a person. This is exactly the mechanism I know from work with the inner critic: a voice that comments not on conduct but on worth. When that voice leans on food, it gains something it did not have before — a daily, measurable, repeatable opportunity to pass judgement.

Rumination often comes with it. The decision about lunch does not end with lunch; it continues in checking, searching, comparing. It is the same mechanism I describe in the piece on going over thoughts — except that here it wears the appearance of responsibility.

What this does to relationships and to the body

The first thing to fall away is the shared table. Eating together is a fundamental form of human connection, and once it becomes a burden, a person starts to dodge it. At first reasonably — once, twice. Then systematically. The loneliness that results often looks like a consequence of circumstances, when in fact it is a consequence of rules.

Physical consequences depend on how extensively the rules have excluded groups of foods and how long this has gone on. They can be mild and they can be serious. I will not go into detail here, because with this topic such descriptions are more often harmful than useful — but it matters to know that they can occur, and that only a doctor can assess them.

What overlaps with it

The orthorexic pattern has a great deal in common with obsessive-compulsive difficulties: an intrusive thought about danger, an action that briefly lowers the anxiety, and a rule that hardens through repetition. It also overlaps with anxiety disorders, where food is only one of the areas fear has settled on.

And in a significant proportion of people there is a classic eating disorder underneath, dressed up in the language of health. This matters clinically, because it changes what is safe to suggest.

Where the concept misleads

Now the part that argues against everything I have written. The concept of orthorexia has serious drawbacks and uncritical use of it is dangerous.

First, because it is not an official diagnosis, it is measured with questionnaires that have drawn well-founded criticism. The most widely used of them was built in such a way that it classed people with entirely unproblematic habits as orthorexic. So the prevalence figures circulating in the media are as a rule badly inflated.

Second — and this matters more — the concept is readily used to pathologise decisions that are legitimate. Someone avoids certain foods because of coeliac disease, an allergy, diabetes, religious conviction or an ethical decision. That is not a disorder, even when it is consistent. The difference is simple: in a disorder the engine is fear and self-evaluation, while a legitimate decision rests on a health need or a value that does not demand punishment when an exception occurs.

Third, many a person who would be labelled orthorexic in fact has anorexia that has found a more socially acceptable language. If in such a case we work only on “flexibility about healthy eating”, we miss the more dangerous thing.

So I almost never use the word orthorexia as a label for a person. I use it as a description of a pattern we then check — and sometimes it turns out there is nothing underneath it that needs treatment at all.

What actually helps

Arguing about nutrition almost never helps. The person knows more than you do and will turn every counter-argument to their advantage. What helps is moving the conversation from content to cost.

In practice we do three things. The first is observing how much life the rules have eaten — without judgement, just an inventory. The second is working with the anxiety the rules hold at bay: gradual, agreed testing of what really happens if a rule is suspended once. The third is separating thought from truth, a technique I describe in the piece on cognitive defusion — the thought “this is dangerous” is an event in the mind, not a forecast about the world.

And one more rule applies: if the rules have cost someone their physical stability, we do not start with exposure. We start with a doctor. I have written about when a doctor is the first step in a separate piece.

How to talk to someone who cannot see it

The commonest mistake relatives make is attacking the content: that it is nonsense, that it is excessive, that it will make them ill. In a person who feels responsible and well informed, this only produces reinforcement.

It works better to speak about yourself and about your shared life. Not “your eating is disordered”, but “I miss going somewhere together without it becoming an all-day question”. Not “you’re overdoing it”, but “it seems to me you have been under a lot of pressure lately and I’m worried how little room there is for anything else”.

Another useful question is one with no correct answer: “What would happen if you did it differently, just once?” Not as a challenge, but as genuine curiosity. The reply tells you whether this is a conviction or a fear. With a conviction the person shrugs and carries on. With fear, their voice changes.

One more thing for relatives: your job is not to convince them. Your job is to stay in contact. People almost never decide to seek help because someone proved them wrong. They decide when the cost of the rules grows larger than the safety they provide — and at that moment it matters that someone who did not walk away is still standing there.

What to remember

Orthorexia is not an official diagnosis, but it is a useful description of a pattern in which care for health passes into a rigidity nobody recognises as a problem, because the people around are praising it.

The line is not in what you eat. It is in flexibility, in cost, and in what happens when a rule falls. If an exception is a fall rather than an exception, then eating is no longer eating.

And at the same time: caution is needed in the other direction too. Consistent eating for reasons of illness, faith or values is not a disorder. The question is not how strictly you eat, but whether these rules leave you freer or less free.