Intermittent fasting is everywhere right now. It is shared in videos, apps and conversations as a simple health habit. For some people, though, skipping meals on purpose can open the door to disordered eating, or make an existing eating disorder worse. This post looks at whether fasting counts as disordered eating, how the restrict and binge cycle works, who may be most at risk, warning signs to watch for and how to get support.
This post is general information, not medical or nutrition advice.
Is intermittent fasting disordered eating?
Not for everyone. Many people try fasting and stop without lasting harm. But fasting shares some features with disordered eating, such as ignoring hunger, following strict food rules and feeling guilty about eating "at the wrong time."
For people who are vulnerable, those features can grow. What starts as a trend can turn into rigid rules, worry about food and a sense of failure when the rules are broken.
So the question is less about the trend itself and more about how it fits into your life. Is it flexible, or does it control you? Do you feel calm around food, or anxious and on guard?
What the research says
Several studies have looked at fasting and eating disorders. In one study that followed teen girls over several years, fasting predicted the later start of binge eating and bulimic symptoms (see Sources). It was one study, but the finding was clear enough to take seriously.
A study of adults found that people who fasted reported more eating disorder symptoms and more rigid "healthy eating" habits than people who did not fast (see Sources). Because it looked at one point in time, it shows a link, not proof that fasting causes harm.
An editorial for health professionals pointed to a large Canadian survey of teens and young adults. That survey linked intermittent fasting with disordered eating behaviours, especially among young women. The authors urged care when fasting is suggested, particularly for young people (see Sources).
The restrict and binge cycle
One of the main risks of fasting is a cycle that many people with eating disorders know well. It often goes like this:
You restrict food for a long stretch, ignoring hunger
Your body and brain become very focused on food
When you finally eat, you may eat quickly or feel out of control
You feel guilt or shame, and promise to restrict even harder
The cycle starts again
This is not a lack of willpower. Long stretches without enough food push the body to seek food strongly. The cycle is a normal response to deprivation, not a personal failing.
Over time, the cycle can wear down your trust in your body. You may start to believe you cannot be around food without rules. That belief can keep you stuck.
Who may be most at risk
Anyone can develop an eating disorder. Eating disorders affect people of every body size, age, gender and background (see Sources). But some people may be at higher risk when they try fasting, including:
Teens and young adults
People with a past eating disorder, or who are in recovery
People with a history of dieting, binge eating or food worry
People who tend toward perfectionism or anxiety
People who feel pressure about their body or appearance
If any of these fit you, it may be worth thinking carefully before trying fasting, and talking it over with someone you trust.
Fasting in eating disorder recovery
For people in recovery, regular eating is often a key part of healing. Fasting can pull in the opposite direction. It can bring back old food rules and the urge to restrict.
Sometimes fasting is framed as "just a health choice," which can make it hard to see when it is becoming a problem. If you are in recovery and feel drawn to fasting, it can help to ask yourself what is behind the pull. Is it about health, or about control, fear or body worry?
This is a good thing to talk through with your treatment team or counsellor. You deserve support that keeps your recovery safe.
Warning signs that fasting is becoming a problem
Watch for signs that fasting is starting to take over. These might include:
Thinking about food, eating times or rules most of the day
Feeling anxious, guilty or panicked if you eat outside your plan
Making the fasting rules stricter over time
Eating in secret, or eating large amounts and feeling out of control
Skipping social events because of food
Feeling worse about your body, even as you stick to the rules
Feeling tired, dizzy, low or irritable much of the time
If you notice several of these, it may be time to step back and get support. Eating disorders are serious, but they are treatable, and early help matters (see Sources).
A weight-inclusive way to look at health
Many fasting trends focus on weight loss. A weight-inclusive approach looks at health differently. It focuses on behaviours that help you feel well, such as regular meals, rest, movement you enjoy and kindness toward your body, no matter its size.
This approach does not ask you to change your weight to be worthy of care. It invites you to build a calmer, more trusting relationship with food and your body. For many people, that shift brings real relief.
You do not need to have a diagnosis to start. If your relationship with food feels tense, confusing or exhausting, that is reason enough to reach out.
Common questions
Can I fast safely if I have never had an eating disorder? Many people can. But it is still worth noticing how it makes you feel. If food starts to take up a lot of your thoughts, or you feel guilty when you eat, take that seriously.
What if fasting is part of my faith? Fasting for religious reasons is different from a diet trend, and it holds deep meaning for many people. If you have a history of disordered eating, it can help to talk with your counsellor about what feels safe for you.
Is it my fault if fasting led to binge eating? No. Bingeing after long stretches without food is a common body response. It is not a sign of weak willpower, and it can get better with support.
How do I stop if I feel stuck? You do not have to stop all at once or alone. A counsellor can help you take small, steady steps back toward regular eating.
Getting support
Our eating disorders counselling team uses a weight-inclusive, non-dieting approach. Sessions are a calm place to look at food rules, body worry and the feelings underneath. The clinicians below list eating disorder support on their profiles, are accepting new clients and see clients online:
The free consultation can help match you with the right person for your needs and age.
Cost, billing and your first step
Sessions with our therapists range from $130 to $200, depending on the clinician.
We accept Health Spending Accounts (HSAs).
We can direct bill many insurers. Coverage depends on your plan, so check with your insurer before you start.
Book a free 15-minute consultation with our admin team. We can listen to what is going on with food and help match you with a counsellor who fits.
If you're in crisis: if you or someone you love is in immediate danger, call 911. If you're thinking about suicide, call or text 9-8-8 any time, day or night.
Last reviewed: October 2026
Sources
Stice E, et al. "Fasting increases risk for onset of binge eating and bulimic pathology: a 5-year prospective study." Journal of Abnormal Psychology, 2008. https://pmc.ncbi.nlm.nih.gov/articles/PMC2850570/
Domaszewski P, et al. "Examining Associations Between Fasting Behavior, Orthorexia Nervosa, and Eating Disorders." Nutrients, 2024. https://pmc.ncbi.nlm.nih.gov/articles/PMC11676192/
Blumberg J, et al. "Intermittent fasting: consider the risks of disordered eating for your patient." Clinical Diabetes and Endocrinology, 2023. https://pmc.ncbi.nlm.nih.gov/articles/PMC10589984/
National Institute of Mental Health. "Eating Disorders: What You Need to Know." https://www.nimh.nih.gov/health/publications/eating-disorders