How Stress Affects Your Weight
Noticed your weight creeping up during a stressful time? It isn't just in your head. Here's how stress hormones affect your blood sugar, appetite and sleep, and what you can do about it.
The fight-or-flight response
When you're stressed, your body releases adrenaline and cortisol. This "fight or flight" response floods your bloodstream with sugar, giving your muscles quick fuel to fight or run from danger.
That was useful for our ancestors escaping predators. Today, most of our stress comes from work deadlines, traffic, finances or family pressures, and we deal with it sitting down. The extra sugar isn't burned off, so the body stores it, often as fat around the tummy.
Blood sugar stays higher for longer
Research shows that stress can make it harder for your body to bring blood sugar back to normal after a meal. The same meal can have a bigger impact on your blood sugar on a stressful day than on a relaxed one. Over time, ongoing stress can contribute to insulin resistance, which makes weight harder to lose.
Cravings and comfort eating
Cortisol also drives appetite, especially for sugary, fatty, high-calorie "comfort" foods. These give a quick lift in mood and energy, but it doesn't last, which can lead to a cycle of snacking.
Poor sleep adds to the problem
Stress often disrupts sleep, and even a few short nights increase the hormones that make you hungry and reduce those that tell you you're full. Tired people also tend to move less and reach for more caffeine and sugar.
What you can do
Notice your stress. Become more aware of your mood and what triggers your stress. Can you change the situation, or the way you respond to it? Keeping a simple journal of stress and eating can reveal patterns.
Find a relaxation practice that suits you. Walking, yoga, meditation, breathwork, art, gardening or time in the ocean all help calm the stress response. Even 5 minutes of slow breathing, in for 4 and out for 6, can switch your body out of fight-or-flight.
Move after meals. A 10 to 15 minute walk after eating helps your muscles use up sugar from your meal. It's a simple way to help regulate blood sugar, especially on stressful days.
Exercise at a time that works for you. Regular movement burns off stress hormones and sugar. Many people find exercising after work is a great way to release the day's stress, but consistency matters more than timing.
Build balanced meals. Include protein, fibre and healthy fats at every meal. Choose slow-release carbs like wholegrains, legumes and vegetables instead of refined, sugary foods, which cause bigger blood sugar spikes.
Plan for cravings. Keep nourishing snacks on hand for stressful moments, such as nuts, Greek yoghurt, boiled eggs or veggie sticks with hummus.
Watch caffeine and alcohol. Both can increase cortisol and disrupt sleep. Try to keep coffee to the morning and give alcohol a rest on weeknights.
Protect your sleep. Aim for 7 to 9 hours. A regular bedtime and a screen-free wind-down make a big difference.
Be kind to yourself. Guilt and harsh self-talk add more stress. Focus on small, sustainable changes, not perfection.
Natural support for stress
Magnesium and B vitamins are used up faster when you're stressed and support a healthy nervous system and energy production. Leafy greens, nuts, seeds, wholegrains and eggs are good food sources.
Adaptogenic herbs such as withania (ashwagandha) and rhodiola have traditionally been used to help the body cope with stress. They aren't suitable for everyone, including during pregnancy or alongside some medications, so get advice from a qualified practitioner first.
Calming teas like chamomile, lemon balm or passionflower can be a soothing part of your evening routine.
Could it be something else?
Stress is only one piece of the puzzle. Weight gain can also be linked to thyroid problems, insulin resistance, PCOS, perimenopause and menopause, some medications and poor sleep. See your GP if you've gained weight without a clear reason, or if you also have symptoms like tiredness, feeling cold, changes to your periods or low mood.
If stress feels overwhelming or is affecting your mood, sleep or relationships, please reach out you don't have to manage it alone.
Take the pressure off with Balanced Health
Managing stress and weight is easier with the right support. At Balanced Health, our naturopaths, nutritionists and psychologist can work with you to understand what's driving your stress and weight, and build a plan that fits your body and your life.
Book an appointment with the Balanced Health team in Coolangatta today.
Written by Sarah Franklin, naturopath, nutritionist and registered nurse. Learn more about our consultations, including fees and health fund rebates.
This article is general information only and isn't a substitute for personalised medical advice. Always speak with your healthcare practitioner before starting new supplements or herbs.
