When Healthy Habits Become a Cage: Discipline, Control and Food Rules
In a world that applauds the 5am run club, the meal prep Sunday and the "clean" plate, sticking to our food rules is a signal of discipline and inner strength. We are rewarded for it.
Caring about the nutritional value of our food is important. A whole-foods diet has real health value.
But what happens when the plan changes? When we head out for a meal with friends and there are no steamed sweet potatoes, only fries?
Discipline and control can look identical from the outside, but they are not the same.
Food has more than one job. It nourishes, comforts, connects and celebrates. It is a sensorial reflection of culture too. Discipline gives us guidelines we follow, can empower us, and allows us to flexibly deviate without guilt. Control, however, tends to be narrow and rigid, closing us in to only one function of food: nutrition.
How do we tell when discipline has bled into control? Here are three questions that tend to tell them apart:
Avoiding: Do you skip dinners, parties or whole food groups because of how distressing it would feel to eat what's on offer?
Checking: Is your planning open-ended, with no event and no end date? A boxer preparing for a pre-match weight cut has a goal and a finish line. Control often has neither.
Guilt: When a rule is broken, does a punishing feeling follow, and a pull to make up for it?
What the research says
Preoccupation with "healthy" eating is sometimes called orthorexia. It is not formally recognised as a diagnosis in the major diagnostic manuals, so researchers are still working out how best to define and measure it. A 2025 review of five meta-analyses (Moccia et al.) found small to moderate links between it and eating disorder symptoms, obsessive-compulsive tendencies and high personal standards, meaning holding yourself to a higher standard than you hold others to. That can happen for many reasons, including some described below. These are associations, not proof of cause.
Notably, evidence from Asia is thin. A 2024 chapter on East Asia describes research there as scarce (Brytek-Matera). Singapore is no different: in 2023, clinicians cited by Channel NewsAsia noted there was no published data on how common orthorexia is here, and that people with restrictive eating often come in with mood or anxiety concerns, with perfectionism possibly underneath (Khoo, 2023). The perfectionism link is consistent with the international findings above.
Why the rules can feel so safe
For many high achievers, food rules can feel like safety. You may be celebrated for your discipline, and you may look fit. It can feel like it fits the person you want to be, someone in perfect control at all times, and like protection from other people's judgement. It can also keep you inside a narrow frame of who you think you're allowed to be and look like.
But as weight fluctuates and time wears on, our willpower thins. It's like walking a tightrope when you could be walking a pavement.
"If I let go, I'll lose my accountability"
This is the fear we hear most. Some might worry that the compassion and curiosity of therapy will strip away their accountability, and that therapy means eating fast food all day and letting yourself go.
It doesn't. Therapy holds up a mirror, so you can decide on purpose whether these rules and this way of living are what you want to keep. It is about learning to walk the pavement, and eventually to skip along it. It is about rebounding when you slip, and about lasting enjoyment in the life you choose. It is not about perfectionism. It is about learning to know and care for yourself on the days you aren't perfect, because at our core, we are human.
A question to sit with
If one of my food rules disappeared tomorrow, what would I be afraid might happen?
You don't have to answer it today.
If this sounds familiar and you'd like support, you can book a discovery call. We work in person in Singapore and by telehealth across Australia. Our Brief Guide to Eating Disorders is a gentle place to start if you'd rather read first.
Frequently Asked Questions
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Discipline gives you guidelines you can follow, can feel empowering, and lets you deviate flexibly without guilt. Control tends to be narrow and rigid, reducing food to only its nutritional function. Questions worth asking are whether you avoid meals out because of distress, whether your planning has no goal or end date, and whether breaking a rule brings a punishing feeling. Our article on Disordered Eating or Discipline? explores this further.
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Orthorexia describes a preoccupation with healthy eating, but it is not formally recognised as a diagnosis in the major diagnostic manuals, and researchers are still working out how to define and measure it. A 2025 review of five meta-analyses found small to moderate links with eating disorder symptoms, obsessive-compulsive tendencies and high personal standards. These are associations, not proof of cause. Whatever the label, a psychologist can help if food rules are causing you distress.
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No. Therapy is not about letting go of everything. It holds up a mirror so you can decide on purpose whether your food rules and way of living are what you want to keep, and it supports you to rebound when you slip. See also 10 Common Misconceptions About Therapy.
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As far as we know, there is no published figure for Singapore. In 2023, clinicians cited by Channel NewsAsia said there was no published data on how common it is here, and research across East Asia is described as scarce. International prevalence estimates vary widely depending on the population and the measurement tool used.
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Yes. Ardelle Psychology offers in-person sessions in Singapore and telehealth across Australia. If you are not ready to book, our Brief Guide to Eating Disorders is a gentle place to start, and a discovery call is a low-pressure way to ask questions.
Author Bio:
Kimberly Tng is a clinical psychologist and founder of Ardelle Psychology, offering evidence-based, trauma-informed care in Singapore and Australia. She works with high-achievers navigating perfectionism, anxiety, disordered eating, burnout, and identity and boundary struggles.