At times, I felt so nauseous I couldn’t imagine eating at all. Yet, at other times, I would hover in the kitchen, reaching for the foods that felt safest and most comforting: pasta slicked with butter and parmesan, American cheese on crackers or melted onto bread—foods that not only brought me back to moments of comfort and nurturing from childhood, but also offered my overwhelmed nervous system something simple, familiar, and soothing.

The foods that usually anchor me—vegetables, fruit, legumes, nuts, seeds, whole grains—seemed to whisper from the sidelines. I could almost hear them calling my name, reminding me who I normally am. But I told them to wait a minute. Or five.

This was a powerful reminder that—even for someone fluent in nutrition—the nervous system always speaks first. After trauma, nourishment often looks less like optimization and more like survival. And over the years, both personally and professionally, I’ve come to understand that our relationship with food is rarely just about food. It’s often a reflection of how safe, supported, connected, or overwhelmed we feel in our bodies.

Our relationship with food is rarely just about food. It’s often a reflection of how safe, supported, connected, or overwhelmed we feel in our bodies.

Your Nervous System at the Table

For nearly twenty-five years, I’ve asked clients the same question during our first session:

“What was family dinner like growing up?”

More than any food log, the answer often reveals the emotional landscape surrounding nourishment: stress or safety, chaos or connection, comfort or control, scarcity or belonging. Because long before we understand nutrition intellectually, we experience nourishment emotionally.

After the accident, I found myself reflecting on this in a deeply personal way. Why did buttered pasta and melted cheese suddenly feel more accessible than the foods that normally anchor me? Why did my body struggle with appetite while simultaneously craving comfort?

The answer lives within the nervous system whose primary job is not to help us eat kale or avoid sugar. 

Its primary job is to keep us alive.

Think of it as the body’s internal communication and surveillance system, constantly scanning both the external and internal environment for cues of safety or danger. One part of this system, called the autonomic nervous system, regulates many of the functions we don’t consciously think about—heart rate, breathing, hormone release, digestion, muscle tension, and our stress responses.

Our autonomic nervous system operates through two primary branches—the sympathetic nervous system and the parasympathetic nervous system.

When the brain perceives stress, threat, overwhelm, or uncertainty—whether physical or emotional—the sympathetic nervous system takes the lead. Stress hormones rise, heart rate increases, muscles tense, and digestion slows as the body redirects energy toward survival.

When the body feels safe, supported, and regulated, the parasympathetic nervous system helps restore balance. Digestion functions more efficiently, appetite cues become clearer, nutrients are absorbed more effectively, and the body can shift from protection into repair.

In simple terms, the body is constantly asking: 

“Am I safe enough to digest?”

If the answer is no, digestion becomes secondary to survival.

Fight, Flight or Freeze

When we experience stress or trauma, our nervous system shifts into survival modes commonly known as fight, flight, or freeze. These physiological responses influence far more than mood or behavior—they directly impact appetite, digestion, cravings, eating patterns, and our overall capacity to receive nourishment.

In fight mode, the body mobilizes for protection. Stress hormones can increase cravings for foods that provide immediate comfort, relief, or stimulation—salty, crunchy, sugary, highly processed, or deeply nostalgic foods. In many ways, the nervous system is simply saying:
“I need comfort now.”

In flight mode, the body prioritizes alertness and productivity over nourishment. Appetite and digestion often become suppressed as stress hormones rise. Meals get skipped, hunger cues become muted, coffee replaces breakfast, and eating is squeezed between responsibilities, deadlines, and constant motion. The message beneath flight mode is often: “Keep going. There’s no time to stop.”

In freeze mode, the nervous system becomes overwhelmed and begins conserving energy. Appetite may disappear altogether, or food may become a source of grounding, sedation, or emotional protection. Even basic tasks like grocery shopping, cooking, or deciding what to eat can feel exhausting. This is the nervous system crying: “I don’t have the energy to keep fighting anymore.”

None of these responses are failures of willpower or nutrition knowledge.

They are adaptive survival responses from a body trying to create safety.

What surprised me most after the accident was realizing how quickly my body—not my intellect—took over. I understood nutrition. I understood balanced meals, blood sugar regulation, fiber, and gut health. Yet in those moments, safety mattered more than optimization.

And this is where the biology of stress becomes important.

The problem is that many of us are no longer experiencing isolated moments of stress. We’re living in chronic stress.

Cortisol, Cravings & the Biology of Stress Eating

When the nervous system perceives danger or overwhelm, the body releases stress hormones—most notably cortisol and adrenaline—to help us survive. In short bursts, this response is adaptive. These hormones increase alertness, mobilize energy, and prepare the body for action.

The problem is that many of us are no longer experiencing isolated moments of stress. We’re living in chronic stress—emotional, psychological, relational, nutritional, environmental, and physical—where the body begins interpreting daily life as one prolonged emergency.

One of cortisol’s jobs is to increase available energy by influencing blood sugar levels. In other words, the body wants quick fuel when it believes it needs to remain vigilant and prepared. This is one reason stress can intensify cravings for foods high in sugar, fat, salt, or refined carbohydrates. These foods provide fast energy, temporary emotional relief, and activate reward pathways involving dopamine and serotonin—brain chemicals tied to pleasure, motivation, comfort, and emotional regulation.

This helps explain why foods like pasta, bread, crackers, sweets, or highly processed comfort foods can feel deeply soothing during periods of overwhelm. They are not simply feeding hunger; they are helping regulate the nervous system.

Stress also changes digestion itself.

When the body perceives threat, digestion is no longer a priority. Stress hormones can alter stomach acid production, slow digestion, impact nutrient absorption, and change gut motility—the movement of food through the digestive tract. This is why stress commonly shows up physically as nausea, bloating, constipation, diarrhea, reflux, stomach pain, or flare-ups of conditions like IBS.

At the center of this relationship is the gut-brain axis—the constant communication network between the brain and digestive system. The vagus nerve and gut microbiome both play critical roles in mood, digestion, inflammation, immunity, and nervous system regulation.

In other words, the gut and brain are constantly talking to each other.

The body does not separate emotional stress from physical stress. The gut feels both.

This is why stress eating is not simply about lacking discipline or “making bad choices.” Very often, it is the nervous system attempting to stabilize itself in the fastest way it knows how.

The goal is not shame.

The goal is understanding.

Because when we understand why the body reaches for certain foods during stress—and why digestion changes in the process—we can begin responding with compassion instead of criticism.

Nourishment Beyond Nutrition

After the accident, I kept thinking I would eventually ‘snap back’ into my normal routines and eating patterns. But trauma doesn’t work that way. For months, I could only tolerate the foods my body perceived as safe. It was not asking for perfection. It was asking for protection.

When we are stressed, grieving, overwhelmed, burned out, anxious, or emotionally depleted, we often reach for foods that feel easy, familiar, predictable, and comforting—foods tied to memory and emotional relief, repetitive “safe” meals, convenience foods, or highly palatable foods. 

This is not a lack of discipline.

It is the nervous system adapting.

Under chronic stress, we have less emotional bandwidth for decision-making, planning, preparing meals, and even self-regulation. In states of overwhelm or uncertainty, our nervous system prioritizes relief before optimization.

And when life feels emotionally unsafe or chaotic, food can be that relief.

This doesn’t make us weak.

It makes us human.

Which is why sustainable change rarely begins with more restriction, shame, or control. We cannot shift eating behaviors while chronically dysregulated. 

A Path Forward

A more compassionate—and often more effective—question becomes:
“What is my nervous system trying to communicate?”

Instead of viewing food behaviors as failures, we can begin seeing them as information.

From a nutritional psychology perspective, nourishment is about far more than macros, micros and calories. Nourishment is also safety. It is rhythm, predictability, comfort, connection, memory, culture, and care. It is the feeling of being settled enough in the body to receive what food is offering.

And healing rarely begins with perfection.

More often, it begins with small, supportive acts that help the nervous system feel safer and more regulated.

And healing rarely begins with perfection. More often, it begins with small, supportive acts that help the nervous system feel safer and more regulated.

Eat Seated, Not in Survival Mode

Many of us eat while standing, driving, scrolling, answering emails, or rushing between obligations. But multitasking keeps the nervous system activated and distracted, making it harder for the body to fully digest, absorb nutrients, and recognize fullness or satisfaction.

Whenever possible, try sitting down for meals—even briefly. Slowing down creates a small but meaningful signal of safety for the body.

Incorporate Grounding and Calming Rituals

The nervous system responds deeply to rhythm, ritual, predictability, and sensory experiences. Small grounding practices around meals can help create moments of regulation and connection throughout the day.

Each morning I enjoy a cup of tea while reading a passage from The Book of Awakening by Mark Nepo as well as William Martin’s Parenting Tao te Ching. During family dinners, we go around the table and share the best part of our day, the hardest part of our day, and something we feel grateful for.

These rituals are not about perfection. They are about presence.

1. Your grounding ritual might look entirely different:

2. Lighting a candle before dinner

3. Taking three slow breaths before eating

4. Saying a prayer

5. Eating without screens

6. Playing calming music

7. Simply pausing long enough to notice the meal in front of you

What matters most is creating moments that help the body feel more settled, connected, and safe.

Begin the Day with Protein

A protein-rich breakfast can help stabilize blood sugar, support energy, improve satiety, and reduce stress-driven cravings later in the day. For a nervous system already working hard to regulate itself, consistent nourishment early in the day can create a stronger physiological foundation.

Eat Consistently Throughout the Day

Skipping meals or going long stretches without eating can intensify blood sugar fluctuations, irritability, fatigue, anxiety, and stress responses. Gentle consistency with meals and snacks helps communicate safety and predictability to the body.

Stay Hydrated

Hydration plays an important role in mood, energy, digestion, circulation, cognitive function, and nervous system regulation. Even mild dehydration can increase fatigue, headaches, brain fog, and irritability, all of which can further strain an already overwhelmed system.

And of course, rolling up your sleeves and cooking itself can be deeply regulating—a sensory, somatic experience that engages the body through touch, smell, rhythm, movement, creativity, and presence. Chopping, stirring, kneading, seasoning, and tasting can gently bring us back into connection with ourselves, helping shift the nervous system from survival and reactivity toward grounding, regulation, and repair.

Even certain foods can feel supportive to a dysregulated nervous system—not because they are “magic foods,” but because they are warming, grounding, stabilizing, and easy to tolerate. Warm soups, oatmeal, protein- and fiber-rich snacks, grounding teas, mineral-rich meals, healthy fats, and complex carbohydrates can all help create a sense of steadiness and support.

Because healing our relationship with food rarely begins with punishment or perfectionism.

It begins with safety.

Our eating patterns are not random. They tell a story about stress, survival, adaptation, emotional needs, and the incredible intelligence of the human nervous system.

Sometimes the body reaches for comfort before nutrition.
Sometimes it seeks relief before balance.
Sometimes it simply wants to feel safe.

And sometimes, the most powerful nutrition intervention isn’t more discipline—it’s more safety.