For many adults, eating is never just eating. It is for comfort, control, punishment, to feel numbness, or to feel reward. And for those who experienced trauma in childhood, the relationship with food can become one of the most complex and potentially even painful aspects of daily life.

It is not about willpower or self-discipline. It’s about how our body’s nervous system has adapted in order to survive.

What do we mean by ‘childhood trauma’?

Trauma isn’t just the dramatic, singular events that we tend to picture. While those experiences — abuse, neglect, the loss of a parent, witnessing violence — are absolutely valid, trauma also encompasses the chronic, constant wounds of childhood: emotional unavailability from caregivers, persistent criticism, instability at home, bullying, poverty, or simply never feeling safe or seen.

These are often referred to as ‘Adverse Childhood Experiences’ (ACEs) — a framework that shows how early adversity ripples through a person’s entire life, affecting mental health, physical health, relationships, and of course, eating behaviour.

The higher a person’s ACE score, the greater their risk of disordered eating, obesity, and troubled relationships with food in adulthood.

Our nervous system doesn’t simply forget.

To understand how trauma shapes eating, we first need to understand what trauma does to the body.

When a child experiences repeated stress or threat — whether physical or emotional — their nervous system adapts. The stress response (fight-flight-freeze) becomes hyperactivated. The body learns to stay on high alert, scanning for danger even when none exists.

Over time, this chronic stress state causes dysregulation in appetite signalling — affecting hormones like ghrelin (hunger hormone) and leptin (satiety hormone), the gut microbiome, and the brain’s reward circuitry around dopamine.

This disruption to our natural regulation causes eating to become entangled with emotional states in ways that bypass conscious awareness.

Food as a coping mechanism

For many children in chaotic or threatening environments, food becomes one of the few reliable sources of pleasure, comfort, or control. This makes complete sense. Food is immediate. It works. It soothes the nervous system in a very ‘real’ way.

But the coping strategies we develop as children don’t simply disappear when we grow up. They might bubble under the surface for a bit, but can show up again later, often in ways we don’t recognise as connected to the past.

This can look like:

o Emotional eating — using food to manage feelings of negative emotions such as anxiety, loneliness, sadness, or numbness. The brain learns that eating (particularly high-fat, high-sugar foods) temporarily blunts emotional pain by triggering dopamine release. A learned neurological pattern.

o Binge eating — consuming large amounts of food rapidly and often in secret, frequently followed by feelings of guilt or shame. Binge eating disorder tend to be correlated with childhood emotional neglect, sexual abuse, and chaotic home environments. Food fills a void, if only temporarily.

o Restriction and control — for those who felt powerless or unsafe growing up, controlling food intake becomes a way to exert control over something. This can be a pathway into anorexic behaviour, where rigidity and control over food intake provides a sense of safety and self-determination that wasn’t there in childhood.

o Dissociation during eating — some trauma survivors describe eating as ‘autopilot’, unaware of what or how much they’ve consumed. This is the mind’s way of escaping an unbearable present and it doesn’t switch off just because the original threat is gone.

o Difficulty with hunger and fullness cues — chronic stress dysregulates the hormones that signal hunger and satiation. Many trauma victims report simply not knowing when they are hungry or full. They have lost touch with the body’s internal regulation and feeding signals.

Shame

One of the most significant aspects of trauma’s impact on eating is the shame that accumulates with it.

Adults who struggle with their relationship with food are often told — by diet culture, sometimes by healthcare providers, and by themselves — that they simply lack discipline. They just need to try harder. Eat less. Move more. Simple.

This narrative is not only unhelpful — it is actively harmful, because it treats the symptom while ignoring the root cause. Shame doesn’t heal disordered eating – it worsens it.

When we feel ashamed of our eating behaviour, we are less likely to talk about it, seek help, or approach ourselves with the curiosity needed for genuine change. Instead, we sit in this viscous cyle: eat to cope with pain → feel shame → feel more pain → eat to cope.

The gut-brain axis

Trauma is not just a memory stored in the mind, we hold it in the body – the way we breather and hold tension. We ‘feel’ it in the nervous system and the gut.

The gut-brain axis is particularly relevant - trauma and chronic stress alter the gut microbiome, affecting digestion, immune function, and emotional regulation. Many trauma survivors deal with IBS, chronic nausea, and disordered digestion.

This is why purely cognitive approaches to changing eating behaviour are often not enough for trauma survivors. You can’t simply think your way out of a pattern that lives in your nervous system.

A good first step:

If you recognise yourself in any of this, the most important thing is to understand that the way you learned to relate to food made sense. You did nothing wrong. It was a response to something real. You survived.

We don’t need to shame those responses into submission, but instead we can gently and gradually, build new behaviours and give the nervous system enough safety that food can become (with time) just food.

It won’t happen over-night. It will require patience. It probably won’t be linear progress. But it is possible, and you deserve support in doing it.

If you’re struggling with your relationship to food and want to talk to someone, you can contact me: sayhello@emilynutritioncoach.co.uk, or your GP can refer you to appropriate support. Beat (beateatingdisorders.org.uk) offers a helpline and resources for those in the UK.