Why We Crave Certain Foods When We Are Emotionally Low

Having a stressful day at work?

Or feeling a bit lonely?

How about a tub of ice cream or a hot plate of pasta?

Why do some days feel better with a packet of potato chips?

Food cravings are a biological survival mechanism where the human body and mind seek escape through comfort foods. When people feel emotionally low (sad, anxious, lonely, or stressed), that emotional distress is often accompanied by strong cravings for specific foods. These cravings, particularly for foods rich in sugar, fat, or refined carbohydrates, are commonly interpreted as a lack of willpower.

But research shows that food cravings are not accidental. They are deeply rooted in emotions, hormonal balance, nutrient supply and food-related memories. The study titled ‘The Psychology of Food Cravings: The Role of Food Deprivation’ by Adrian Meule from the Department of Psychiatry and Psychotherapy, University Hospital Munich, Germany, explains that food cravings typically occur in the late afternoon and evening. The study also notes that cravings have cognitive (thinking about food) and emotional (desire to eat or change in mood) components.

Understanding why we crave certain foods when we are emotionally low reveals how the human brain attempts to regulate emotions and why food becomes the fast and reliable relief tool. In such situations it is not about hunger. It is about emotional survival. Food calms down the nervous system and retrieves emotional memories of favourite tastes.

Different foods trigger different neurochemical changes and provide emotional comfort. Let us explore the reasons behind some common cravings.

Emotional Distress and Mood Stabilisation

When a person feels emotionally low, the body enters a physiological state in which neurotransmitters, hormones, and nervous system activity change. According to the Reward Based Stress Eating Model and Selye’s Theory of Stress, the dopamine and serotonin levels decrease, while cortisol levels increase during stress or low mood.

Dopamine is a centre of motivation and reward anticipation.During emotional distress, the brain becomes under-stimulated and the dopaminergic system slows down. At this point, the brain identifies food as a fast and reliable source of dopamine, as highly palatable foods like sugar- and fat-rich items stimulate dopamine release.

Cravings for such foods reflect the brain’s attempt to restore pleasure. Over time, this becomes a conditioned response, with the brain associating specific foods with emotional relief.

Serotonin also plays a key role in mood regulation. Reduced serotonin levels can lead to low mood, irritability, emotional vulnerability, and depressive symptoms. This is why cravings for carbohydrate-rich foods increase. Carbohydrates boost insulin secretion, which reduces competition among amino acids and allows tryptophan, a serotonin precursor, to cross the blood–brain barrier more efficiently.

However, this serotonin boost lasts only for a short time. As a result, emotional eating often becomes repetitive, with the body seeking repeated triggers to maintain a sense of well-being.

Chronic emotional distress activates the hypothalamic–pituitary–adrenal (HPA) axis that results in elevated cortisol (the primary stress hormone) levels.Increased cortisol leads to heightened appetite, cravings for high-calorie foods, and fat storage, particularly around the abdomen. Under stress, the body behaves as though it is facing danger or scarcity, encouraging energy intake and storage.

Emotional Memory, Loneliness, and Coping Mechanisms

Certain foods are tied to memories of comfort, people, and identity. Home-cooked meals often symbolise safety and care, while sweets may be associated with rewards or celebrations. Brain regions such as the hippocampus and amygdala link memory with emotion, allowing certain foods to represent comfort, familiarity, family, culture, or joy.

Loneliness and rejection activate brain regions like the anterior cingulate cortex which is associated with emotional distress. This is why lonely individuals may eat mindlessly or late at night. During these moments, warm and familiar foods help calm the nervous system, turning eating into a coping strategy and a form of self-soothing.

Over time, this escape-based eating can develop into a habit loop. Emotional discomfort triggers food consumption, providing temporary relief, and eventually cravings appear even before conscious awareness.

So… what does this mean?

Craving is often seen as a sign of poor self-control. But craving a chocolate bar or biriyani during a difficult week is not a weakness. It is your brain attempting to protect you. Instead of viewing cravings as failures, try to understand what your body and mind are asking for. Acknowledge the emotional need behind each craving.

A snack may offer a temporary dopamine boost, but real healing takes time. Work stress, personal struggles, habit loops, and emotional wounds require long-term support and self-kindness. As these issues are addressed, cravings naturally reduce.

Crave real healing rather than temporary comfort.