Stressed at work and snacking all day: what can I do?

Snacking more when work gets stressful is a common reaction. England's NHS lists eating too much or too little among the changes in behaviour that stress can cause, and a review of 54 studies with 119,820 adults found that stress went together with eating more unhealthy food and less healthy food. What helps is working on both sides: notice when and why you reach for snacks, keep regular meals, make fruit and water the easiest things to grab, take short breaks to breathe or move, and deal with the source of the stress by talking to your manager or someone you trust. If you are struggling to cope, see a doctor or call the 1323 mental health hotline.

Why do I snack more when I'm stressed?

Stress changes behaviour, including eating

The NHS explains that stress can affect how you feel physically and mentally and also how you behave. Alongside being irritable, sleeping too much or too little and drinking or smoking more, it lists eating too much or too little. When you are anxious, the NHS says, your body releases stress hormones such as adrenaline and cortisol. It also notes that it is not always easy to recognise when stress is the reason you are acting differently.

What research shows

A 2022 review by Hill and colleagues combined 54 studies of healthy adults (119,820 people in total). Stress was linked with eating slightly more overall, more unhealthy food and less healthy food. The links were small on average and differed a lot between studies, which fits everyday experience: some people snack more under pressure, others lose their appetite.

In Thailand, a 2025 survey of 168 nurses working across the country, by Naknoi and colleagues, found that nurses who reported more anxiety, and more burnout from dealing with patients, tended to score higher on an emotional eating questionnaire. Sleep problems were not linked. The study looked at one group at one point in time and relied on questionnaires, so it shows links, not cause and effect, and nurses may not be typical of other workers.

Why it is often snacks

At work, the quickest things to grab are usually what is in the drawer, the office pantry or the shop downstairs: biscuits, sweets, crisps and sweet iced drinks. They take no preparation and fit between tasks.

How common is work stress in Thailand?

There is no single national figure for work stress, but Thai studies show who is affected and what tends to go with it.

What Thai studies found

What these numbers can and cannot tell you

Each study used a different questionnaire and covered one occupation, one province or one period, so the figures cannot be added up into a national rate. What they share is a pattern: long hours, little control and pressure at work are linked with stress.

Where work stress comes from

The UK Health and Safety Executive (HSE) groups the main causes of work-related stress into six areas: demands, control, support, relationships, role and change. For example, not being able to cope with the demands of the job, having no control over how you do your work, or an unclear role. Snacking is a sign worth noticing, but the lasting change usually comes from one of these six areas. For the difference between everyday stress and burnout, see Burnt out at work: how is it different from tiredness?

What is in the snacks we reach for?

Many packaged snacks in Thailand are high in sugar or salt

A Mahidol University team led by Phulkerd checked the labels of ultra-processed products launched in Thailand from 2015 to 2021 against the WHO South-East Asia nutrient limits:

The analysis covered products on the market, not what people actually ate, but it shows why a few packets during a stressful afternoon add up.

How much sugar and sodium in a day?

England's NHS explains how much sugar is too much in terms of free sugars: sugars added to food or drinks, plus those in honey, syrups and fruit juices and smoothies. Sugar found naturally in fruit, vegetables and milk does not count.

The NHS gives the example that a can of cola can have as much as 9 cubes of sugar, more than the daily limit for adults. For sodium, the Thai Reference Daily Intake (Thai RDI) is 2,000 mg a day. For how much sugar is in Thai iced drinks, see Sweet iced tea or coffee every day: how much sugar is that?

Reading the label

England's NHS describes more than 22.5 g of total sugars per 100 g as high and 5 g or less per 100 g as low. On a Thai label, check sodium per serving and how many servings the packet contains.

How can I tell stress snacking from real hunger?

There is no test, but patterns help. Some examples that may help you notice:

• You reach for it straight after a difficult email, call or meeting, not at a usual mealtime.
• You eat it without noticing, while still working.
• You are not hungry for a proper meal, but want something sweet or crunchy.
• It happens on busy, tense days much more than on calm ones.

The CDC suggests keeping a journal as one way to manage stress. Noting for a week when you snacked, what you ate and what had just happened can show whether the snacks follow the clock or follow the stress.

What can I do at work?

Keep regular meals

Long gaps make any snack more tempting. Eating breakfast and a proper lunch means fewer moments when you are both hungry and tense. The NHS suggests including at least one starchy food, such as rice, with each main meal and eating plenty of fruit and vegetables.

Change what is within reach

• Keep fruit on your desk. The NHS suggests swapping your usual mid-morning snack for a piece of fresh fruit.
• Keep a bottle of water nearby. England's NHS cites the UK government's advice of 6 to 8 glasses of fluid a day, with water and lower-sugar drinks as healthier choices.
• If you want a snack, decide the time and the amount, take one portion out and put the packet away rather than eating at your keyboard.
• Ask for less sugar in iced drinks, or choose a smaller cup.

Take short breaks that are not about food

The CDC suggests taking deep breaths, stretching or meditating, spending time outdoors, and talking with people you trust about your concerns. A five-minute walk to refill your water bottle or a few slow breaths at your desk can fill the gap a snack would have filled. The NHS adds breathing exercises, setting small targets you can achieve and easy time-management techniques, and advises against using alcohol or cigarettes to cope with stress.

Look at the cause

The HSE advises that if you are feeling signs of stress at work, it is important to talk to someone, for example your manager, as soon as possible, so they have a chance to help before things get worse. If your manager is the source of the stress, it suggests a staff representative, HR, an employee assistance or counselling service, or a doctor. The HSE also stresses that stress is not a weakness and can happen to anyone. For stress that has been building for weeks, see Stress keeps building up. How do I spot it and cope?

When should I get help?

England's NHS advises seeing a doctor if:

• you are struggling to cope with stress
• the things you are trying yourself are not helping

Also talk to a doctor if your eating has changed a lot and stays that way, or if stress comes with low mood, poor sleep or worry that does not lift. In Thailand, the 1323 mental health hotline is free and open 24 hours a day. If you have thoughts of harming yourself, get help straight away by calling 1323 or going to the nearest hospital emergency department.