When the days get shorter and colder, many people notice their mood shifts too. Energy dips. Worry comes more easily. The holidays add pressure on top of it all. If you live with anxiety or low mood, this time of year can feel especially heavy.
The good news: you have more control over how you feel than you think.
Professional support from your doctor or therapist comes first. But alongside that care, small daily choices add up, and one of the most overlooked is what’s on your plate. The food you eat shapes how your body feels, and it also shapes how your brain works.
In this guide, you’ll learn about foods that reduce anxiety symptoms or support a calmer mood, which foods to limit, and how to find what works for your body.
Why Food Affects Your Mood
Research on diet and depression has grown into its own field: nutritional psychiatry. In the SMILES trial, led by Professor Felice Jacka [1] of Deakin University, people with depression who ate a healthier diet for 12 weeks improved much more than those who only got social support.
After 12 weeks, about one in three people in the diet group (32.3%) saw their depression go into remission, compared with only 8% in the other group. As Professor Jacka and her team wrote, eating better is “achievable” even with “the fatigue and lack of motivation” that come with depression.
Psychiatrist and author Dr. Drew Ramsey, MD, agrees: “There is growing evidence that the foods we eat profoundly affect our mood and mental health.”
A big part of the story is inflammation. Processed food and added sugar can cause long-term inflammation in the body, which is linked to anxiety and depression.
Start with Awareness: Keep a Food and Mood Journal
Everyone reacts to food differently, so start by observing your own patterns.
For one week, write down:
-
What you ate and drank
-
The time of day
-
How you felt physically afterward (bloating, headaches, low energy)
-
How you felt emotionally (calm, irritable, anxious, flat)
Patterns often show up faster than you’d expect. While no single food can treat anxiety, certain nutrient-rich foods may support mood and are often included when discussing foods that reduce anxiety.

Foods to Add to Your Anti-Anxiety Diet
1. Folate and B-Vitamin–Rich Foods
Folate is a B vitamin many people don’t get enough of. Research has linked low folate levels with a higher risk of depression. Good sources include:
-
Spinach
-
Kale
-
Bok choy
-
Mustard greens
-
Lentils and beans
Thinking about a supplement? Talk to your doctor first, and ask whether an active form of folate is right for you.
2. Vitamin D–Rich Foods
Low vitamin D has been associated with depression and seasonal mood changes. Sunlight is the main source, but in fall and winter, food can help fill the gap:
-
Salmon
-
Egg yolks
-
Mushrooms (especially UV-exposed)
-
Sardines, herring, and tuna
-
Cod liver oil
3. Lean Proteins
Protein supports more than muscle. Your body uses tryptophan, an amino acid found in protein foods, to make serotonin, one of your brain’s key mood chemicals. Not getting enough protein can disrupt that process.
Aim for lean, high-quality sources like poultry, fish, eggs, beans, and tofu at most meals.

Foods to Limit
1. Added Sugar
If you change only one thing, make it this. Added sugar spikes and crashes your blood sugar, and your mood can follow. Studies also link high sugar intake to a higher risk of mood problems over time.
To be clear, we mean added sugar. The natural sugar in whole fruit is fine and encouraged.
When you’re low on energy, planning meals ahead or picking low-sugar ready meals can help you skip sugary snacks.
2. Food Dyes
Artificial dyes hide in cereals, snack bars, cheeses, and even “vanilla” ice cream. Some people react badly to them, and they’re usually found in processed foods anyway. Limiting them is an easy win.
3. Dairy and Gluten (If You’re Sensitive)
These don’t affect everyone, but some people feel bloated, foggy, or low after eating them. If your journal shows this, try cutting one out for a few weeks, with help from your doctor or a dietitian.
The Gut-Brain Connection
Ever felt “sick to your stomach” before a big event? Or craved comfort food after an emotionally draining day? That’s the gut-brain connection at work.
Researchers call this the gut-brain axis. The trillions of bacteria in your gut send signals to your brain that affect stress and mood. Vegetables, beans, fruit, and fermented foods like yogurt, kefir, and kimchi help keep your gut healthy.
If your stomach often gives you trouble, it may be affecting your mood too. A doctor or registered dietitian can help you sort it out.

Final Thoughts
If you’re looking for foods that reduce anxiety or support a steadier mood, focus on a balanced diet built around whole foods, with less added sugar and highly processed food.
Pay attention to how you respond to specific foods. And remember: if you’re struggling with anxiety or depression, you’re not alone. Reach out to a healthcare provider, a loved one, or a trusted friend, and take it one step at a time.
Food is one part of feeling calmer. Gentle movement is another. Pair your new eating habits with [10 Yoga Poses to Improve Lymphatic Drainage], a simple routine of gentle stretches to help your body relax and keep things moving.
FAQs
- What exactly is an anti-anxiety diet? It’s a way of eating that focuses on whole foods like leafy greens, fish, lean protein, and fermented foods, and cuts back on sugar and processed food. It’s meant to support mental health alongside professional care, not replace it.
- Can food really affect my mood that much? Yes. Studies show that what you eat is linked to symptoms of depression and anxiety, partly through inflammation and your gut.
-
Do I need to give up sugar completely? No. The goal is to cut back on added sugar, the kind found in sweets, sodas, and many packaged foods. Natural sugar in whole fruit is fine and comes with fiber and nutrients.
References
- A randomised controlled trial of dietary improvement for adults with major depression (the “SMILES” trial). Felice N. Jacka, Adrienne O’Neil, Rachelle Opie, et al. BMC Medicine, Vol. 15, Article 23. Published 2017. https://doi.org/10.1186/s12916-017-0791-y
- The Effects of Dietary Improvement on Symptoms of Depression and Anxiety: A Meta-Analysis of Randomized Controlled Trials. Joseph Firth, Wolfgang Marx, Sarah Dash, et al. Psychosomatic Medicine, Vol. 81(3):265–280. Published 2019. https://doi.org/10.1097/PSY.0000000000000673
- Vitamin D deficiency and depression in adults: systematic review and meta-analysis. Rebecca E. S. Anglin, Zainab Samaan, Stephen D. Walter, Sarah D. McDonald. British Journal of Psychiatry, Vol. 202(2):100–107. Published 2013. https://doi.org/10.1192/bjp.bp.111.106666
- Sugar intake from sweet food and beverages, common mental disorder and depression: prospective findings from the Whitehall II study. Anika Knüppel, Martin J. Shipley, Clare H. Llewellyn, Eric J. Brunner. Scientific Reports, Vol. 7, Article 6287. Published 2017. https://doi.org/10.1038/s41598-017-05649-7
- Mind-altering microorganisms: the impact of the gut microbiota on brain and behaviour. John F. Cryan, Timothy G. Dinan. Nature Reviews Neuroscience, Vol. 13(10):701–712. Published 2012. https://doi.org/10.1038/nrn3346

