Is Food Addiction Real?

Short answer: addiction-like eating is real and increasingly well documented, particularly around ultra-processed foods. But "food addiction" is not currently a formal diagnosis the way alcohol use disorder is, and we are not going to tell you otherwise.

That distinction matters, so we have written this carefully and cited it properly. Every claim about mechanism below is referenced at the foot of the page.

Appetite is not a willpower problem

Appetite is regulated by an interaction between your brain, gut, pancreas, liver, fat tissue, blood glucose, insulin, stress hormones, reward pathways and the food environment around you. Willpower is one input among many, and it is the one most affected by everything else on that list.

If you have ever been disciplined all day and undone at 9pm, that is not a character failure. It is what happens when a system under pressure meets a cue it has been trained on.

What researchers actually measure

The tool used in this research is the Yale Food Addiction Scale, validated by Gearhardt and colleagues in 2009 [2]. It assesses cravings, loss of control, unsuccessful attempts to cut down, and continued consumption despite negative consequences — the same criteria used for substance use disorders, applied to food.

Two things that scale does not establish, and we want to be clear about both: it does not mean everyone who overeats has a food addiction, and it does not mean all foods are addictive. The concern is a specific category of food.

Which foods, and why

The foods implicated are ultra-processed ones that combine rapidly absorbed refined carbohydrate with added fat, plus salt, flavour enhancers, soft textures and high energy density [3].

Whole foods sit at the other end. They contain intact fibre, water, protein, chewing resistance, micronutrients and the natural satiety signals that tell you to stop. That is most of the difference.

The combination is the point

Refined carbohydrate plus added fat together is uncommon in nature, and the pairing produces a reward response greater than either component alone — a supra-additive effect demonstrated by DiFeliceantonio and colleagues in 2018 [4]. It strongly activates the mesolimbic dopamine system.

Dopamine is worth understanding correctly here. It is a reward-learning signal, not simply a pleasure chemical. So the brain learns the cue, the context and the relief. Behaviour can shift from enjoyment to compulsion even as the enjoyment itself fades — which is exactly what people describe when they say they ate the whole packet without really tasting it.

The cues are ordinary: the packet, the smell, the couch at night, the supermarket aisle, stress after work, fatigue, boredom, a blood glucose dip.

The trial worth knowing about

Hall and colleagues ran an inpatient randomised controlled trial in 2019 [5] in which meals were matched for presented calories, sugar, fat, fibre and macronutrients. On the ultra-processed diet, people ate more and gained weight anyway.

That design is what makes it useful. It was not the nutrients that differed — it was the format.

Where insulin resistance comes in

In insulin resistance, cells respond poorly to insulin and the pancreas compensates by producing more of it. Fasting glucose and HbA1c can still look normal while insulin demand is far higher than it should be, which is why people are often reassured by a blood test that has not measured the thing going wrong.

Insulin also acts in the brain, where it interacts with appetite, dopamine, reward, mood and satiety pathways [6][7]. That is the link between a metabolic problem and an eating one.

The loop runs like this: refined carbohydrate produces a larger and less stable glucose and insulin response; the sharper fall afterwards leaves you tired, foggy, irritable or hungry; the fastest fix for that feeling is the food that caused it. Each pass through makes the next one easier.

Food noise

"Food noise" describes intrusive, repetitive thoughts about food — a conceptual model set out by Hayashi and colleagues in 2023 [8]. It is not the same as hunger. It is cue reactivity, and it is exhausting in a way that hunger is not, because it does not resolve when you eat.

People on GLP-1 medications frequently report that this quietens, which is one of the more interesting things about that drug class. We do not prescribe or supply those medications, and whether one is appropriate for you is a decision for your doctor.

Why "just use willpower" fails

If the driver is physiology — reward learning, insulin signalling, cue reactivity — then advice aimed purely at character is aimed at the wrong target. It also does real harm, because it tells people who are fighting a trained biological response that they are simply weak.

The useful question is not "how do I want it less?" but "how do I change the inputs?"

What actually helps

The levers that follow from the evidence above are protein, fibre, whole-food structure, controlled portions, and reduced exposure to ultra-processed formats. None of that is exciting, and all of it is mechanistically sensible given what the research shows.

Our meals are built to that shape: roughly 250 calories each with at least 20 g of protein, under 20 g of carbohydrate and under 120 mg of sodium per 100 g, no added sugar, no artificial sweeteners and no preservatives, snap-frozen rather than shelf-stabilised.

We want to be straight about the limit of that claim. Our meals match the dietary pattern the research supports. We have not run a trial showing that eating them reduces food addiction scores, and we are not claiming one. Customers often tell us cravings settle and energy steadies on a structured whole-food approach — that is what people report to us, not a measured outcome we can promise you.

If you recognise yourself in the compulsive-eating description rather than the ordinary-overeating one, that is worth raising with a GP or a dietitian, not solving with a meal plan alone. We employ Accredited Practising Dietitians and offer a free 15-minute consultation by video or phone, valued at $49.

References

  1. Gearhardt AN, Bueno NB, DiFeliceantonio AG, Roberto CA, Jiménez-Murcia S, Fernández-Aranda F. Social, clinical and policy implications of ultra-processed food addiction. BMJ 2023;383:e075354.
  2. Gearhardt AN, Corbin WR, Brownell KD. Preliminary validation of the Yale Food Addiction Scale. Appetite 2009;52(2).
  3. Schulte EM, Avena NM, Gearhardt AN. Which foods may be addictive? The roles of processing, fat content and glycemic load. PLoS One 2015;10(2):e0117959.
  4. DiFeliceantonio AG, Coppin G, Rigoux L, Thanarajah SE, Dagher A, Tittgemeyer M, et al. Supra-additive effects of combining fat and carbohydrate on food reward. Cell Metabolism 2018;28(1).
  5. Hall KD, Ayuketah A, Brychta R, Cai H, Cassimatis T, Chen KY, et al. Ultra-processed diets cause excess calorie intake and weight gain: an inpatient randomised controlled trial of ad libitum food intake. Cell Metabolism 2019;30(1).
  6. Kleinridders A, Pothos EN. Impact of brain insulin signaling on dopamine function, food intake, reward and emotional behavior. Current Nutrition Reports 2019;8(2).
  7. Kullmann S, Heni M, Hallschmid M, Fritsche A, Preissl H, Häring HU. Central nervous pathways of insulin action in the control of metabolism and food intake. Lancet Diabetes & Endocrinology 2020;8(6).
  8. Hayashi D, Edwards C, Emond JA, Gilbert-Diamond D, Butt M, Rigby A, Masterson TD. What is food noise? A conceptual model of food cue reactivity. Nutrients 2023;15(22):4809.

Important health information

This article carries no formal health disclaimer, though it does state that not everyone needs medication and that food addiction is not a moral failure. It discusses insulin resistance, prescription GLP-1 medications and compulsive eating, none of which can be self-diagnosed from a blog. Anyone who recognises loss of control around food, or who suspects disordered eating, should seek assessment from their GP or a qualified clinician - this article is not a diagnostic tool and the Yale Food Addiction Scale is a research instrument, not a self-test. Readers should seek medical advice and have a check-up before changing how they eat, particularly if they have an existing medical condition or take medications, including diabetes medication whose dose may need review as intake changes. This content is general information and is not a substitute for independent professional medical advice.

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Questions and answers

What do we explain about Is Food Addiction Real?

On our Is Food Addiction Real page, we explain that short answer: addiction-like eating is real and increasingly well documented, particularly around ultra-processed foods. But "food addiction" is not currently a formal diagnosis the way alcohol use disorder is, and we are not going to tell you otherwise. That distinction matters, so we have written this carefully and cited it properly. Every claim about mechanism below is referenced at the foot of the page.

What should I know about appetite is not a willpower problem on this page?

On our Is Food Addiction Real page, we explain that appetite is regulated by an interaction between your brain, gut, pancreas, liver, fat tissue, blood glucose, insulin, stress hormones, reward pathways and the food environment around you. Willpower is one input among many, and it is the one most affected by everything else on that list. If you have ever been disciplined all day and undone at 9pm, that is not a character failure. It is what happens when a system under pressure meets a cue it has been trained on.

What evidence should I understand about Is Food Addiction Real?

On our Is Food Addiction Real page, we explain that the tool used in this research is the Yale Food Addiction Scale, validated by Gearhardt and colleagues in 2009 [2]. It assesses cravings, loss of control, unsuccessful attempts to cut down, and continued consumption despite negative consequences — the same criteria used for substance use disorders, applied to food. Two things that scale does not establish, and we want to be clear about both: it does not mean everyone who overeats has a food addiction, and it does not mean all foods are addictive. The concern is a specific category of food.

What should I know about which foods, and why on this page?

On our Is Food Addiction Real page, we explain that the foods implicated are ultra-processed ones that combine rapidly absorbed refined carbohydrate with added fat, plus salt, flavour enhancers, soft textures and high energy density [3]. Whole foods sit at the other end. They contain intact fibre, water, protein, chewing resistance, micronutrients and the natural satiety signals that tell you to stop. That is most of the difference. The combination is the point Refined carbohydrate plus added fat together is uncommon in nature, and the pairing produces a reward response greater than either component alone — a supra-additive effect demonstrated by DiFeliceantonio and colleagues in 2018 [4]. It strongly activates the mesolimbic dopamine system. Dopamine.

What should I know about where insulin resistance comes in on this page?

On our Is Food Addiction Real page, we explain that in insulin resistance, cells respond poorly to insulin and the pancreas compensates by producing more of it. Fasting glucose and HbA1c can still look normal while insulin demand is far higher than it should be, which is why people are often reassured by a blood test that has not measured the thing going wrong. Insulin also acts in the brain, where it interacts with appetite, dopamine, reward, mood and satiety pathways [6][7]. That is the link between a metabolic problem and an eating one. The loop runs like this: refined carbohydrate produces a larger and less stable glucose and insulin response; the sharper fall afterwards.

What should I know about food noise on this page?

On our Is Food Addiction Real page, we explain that "Food noise" describes intrusive, repetitive thoughts about food — a conceptual model set out by Hayashi and colleagues in 2023 [8]. It is not the same as hunger. It is cue reactivity, and it is exhausting in a way that hunger is not, because it does not resolve when you eat. People on GLP-1 medications frequently report that this quietens, which is one of the more interesting things about that drug class. We do not prescribe or supply those medications, and whether one is appropriate for you is a decision for your doctor.

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