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What is Health at Every Size?

A clear explanation of the HAES framework, what its principles actually say, and the two things people most often get wrong about it.

Lauren Hofstee, RD · 2026-07

Where the phrase comes from

Health at Every Size, usually shortened to HAES, is a framework that came out of clinicians and researchers who kept noticing the same thing: weight loss prescriptions were not producing lasting results, and the people receiving them were often getting worse, not better, in their relationship with food. The name is frequently misheard as a claim, as if it were saying every body is equally healthy. It is not a claim about outcomes. It is a claim about access. The argument is that health supporting care should be available to people at every size, right now, rather than being held back until a body changes.

What the principles actually say

The framework is usually described in five parts: weight inclusivity, health enhancement, respectful care, eating for wellbeing, and life enhancing movement. Stripped of the formal language, they add up to something fairly plain. Do not make body size the gatekeeper for care. Attend to the whole picture of wellbeing, including social and economic realities that shape what people can actually do. Recognise weight stigma as something that causes harm on its own. Support flexible, satisfying eating that responds to hunger, fullness, and pleasure rather than external rules. And support movement that people can sustain because it feels good, not because it is being used as a correction.

The two most common misreadings

The first is that HAES means health does not matter. It does not say that. It says health is worth pursuing directly, through behaviours and care and treatment, rather than indirectly through body size. The second is that HAES tells people they must never think about weight again. It does not police what anyone feels about their own body. Living in a culture like ours, most people carry complicated feelings about weight, and a HAES aligned dietitian expects that rather than being surprised by it. The framework guides how care is delivered, not what you are permitted to feel.

What the research actually shows

Studies comparing weight neutral approaches to conventional weight loss approaches have generally found comparable or better results on the health markers people care about, things like blood pressure, blood lipids, and fitness, alongside better outcomes on eating behaviour, body image, and depressive symptoms, and notably fewer dropouts. The research base is not enormous and the trials tend to be small, which is worth saying honestly. But the pattern is fairly consistent, and it sits alongside a much larger and older body of evidence showing that intentional weight loss is regained by most people within a few years.

What it looks like in an ordinary week

Less dramatic than the debates around it, usually. It looks like eating breakfast because going until two in the afternoon leaves you frantic by evening. It looks like keeping the foods you enjoy in the house so they lose their charge. It looks like going for a walk because your head clears afterward, and skipping it on the days your body is tired, without treating that as a failure. It looks like going to the doctor for the knee pain and asking that the knee actually be examined. It is mostly ordinary, and that is the point.

If you are curious where to start

Most people meet this framework somewhere in the middle of a long history with dieting, and the first reaction is often relief mixed with real doubt about whether it could work for them. Both of those can be true at once. You do not have to adopt a philosophy to start eating more regularly and feeling less at war with food. If you would like to ask questions about how this would actually apply to your life, there is a free intro call available, with no pressure to book anything after it.

Questions

Is Health at Every Size saying that weight has no effect on health at all?

No. It is saying that weight is a poor target for intervention, which is a different statement. Weight is correlated with a number of health outcomes, but correlation does not tell you that changing the weight changes the outcome, especially when the available methods for changing it do not hold for most people long term. HAES redirects attention to the things that can be changed and sustained: eating adequately, moving in ways that fit your life, sleeping, managing stress, and getting actual medical treatment for actual conditions.

Does following HAES mean ignoring my doctor's advice?

Not at all, and no responsible dietitian would suggest that. If your doctor has flagged a lab value or prescribed a medication, that stays. What HAES offers is a way to engage with medical care rather than avoid it, including language for asking that a symptom be investigated on its own terms. If you leave an appointment unsure whether your concern was actually assessed, it is fair to go back and ask, and a dietitian can help you prepare for that conversation.

If any of this sounds like you

The first call is free, and there is no pressure to continue. It is just a calm conversation about what you are looking for.

Book a free intro call