Guide · Nutrition & Mood
Best Anti-Inflammatory Foods for Mood
← All guides · By the Willow & Stone team · Updated September 2026
Key Takeaways
- The best evidence is for eating patterns, especially Mediterranean-style diets, rather than any single food.
- In the small SMILES trial, adults with depression who got dietary coaching improved more over 12 weeks than a social-support group. Larger trials are still needed.
- Research links omega-3 fats, fiber, polyphenols and fermented foods to lower inflammation or better mental health, but it does not show that any food cures anxiety or depression.
- Keep taking prescribed medication while you change how you eat. Ask your prescriber before adding supplements such as fish oil or curcumin.
Researchers have found higher levels of inflammatory markers in some people with depression, and diet is one of the everyday factors that shapes inflammation. That link has made "anti-inflammatory eating" a popular idea in mental health. Here is what the research actually supports, food by food. We focus on what to add to your plate, because that approach is easier to keep up than a long list of banned foods.
A BMJ review of food and mood found that healthy eating patterns such as the Mediterranean diet are associated with better mental health than Western-style patterns. It named blood sugar, immune activation and the gut microbiome as likely pathways. It also said more research is needed on how and when nutrition can be used to improve mental health. Read every item below in that light: these are promising, low-risk changes, not treatments.
1. Fatty fish: salmon, sardines, mackerel, trout
Omega-3 fats (EPA and DHA)
Fatty fish are the richest food source of the long-chain omega-3 fats EPA and DHA, which are part of the body’s anti-inflammatory signaling. Harvard Health lists fatty fish among its core anti-inflammatory foods.
The supplement research is mixed. A 2019 meta-analysis in Translational Psychiatry found a small overall benefit of omega-3s on depressive symptoms, mainly with formulas that were at least 60% EPA. The National Center for Complementary and Integrative Health says it is still uncertain whether omega-3 supplements help depression. Eating fish two or so times a week is a reasonable middle path.
Caveat: Use the FDA’s fish chart to pick lower-mercury options. Talk to your prescriber before starting fish-oil capsules, especially if you take blood thinners.
Source: Liao et al., Translational Psychiatry 2019 (PMC); NCCIH: Omega-3 supplements; FDA: Advice about eating fish
2. Extra-virgin olive oil
Polyphenols and monounsaturated fat
Olive oil is the main fat in the Mediterranean diet and is on Harvard Health’s list of anti-inflammatory foods. Extra-virgin oil keeps more of the plant polyphenols that researchers study for their anti-inflammatory effects.
In the large PREDIMED trial, researchers also looked at new cases of depression. The Mediterranean-diet groups did not show a statistically significant overall drop in depression risk compared with a low-fat diet. There was a signal of benefit in participants with type 2 diabetes. So the case for olive oil is about an overall pattern that is good for the heart and may help mood, not a guaranteed mood effect.
Caveat: Olive oil is calorie-dense. Use it to replace butter, margarine or shortening rather than adding it on top.
Source: Sánchez-Villegas et al., PREDIMED depression analysis, BMC Medicine 2013 (PMC); Harvard Health: Foods that fight inflammation
3. Leafy greens: spinach, kale, collards, chard
Folate, magnesium, fiber
Green leafy vegetables appear on nearly every anti-inflammatory food list, including Harvard’s. They supply folate, which the body uses in pathways that make neurotransmitters, plus magnesium, fiber and a wide range of plant compounds.
The SMILES trial’s modified Mediterranean diet emphasized vegetables. Its authors also note observational research linking diets rich in vegetables, fruit, legumes and whole grains with lower depression risk. A practical goal is a handful of greens at two meals a day, raw in salads or wilted into eggs, soups and grain bowls.
Caveat: If you take warfarin, keep your intake of vitamin-K-rich greens steady and tell your prescriber about big changes.
4. Berries and deeply colored fruit
Polyphenols and anthocyanins
Harvard Health lists strawberries, blueberries, cherries and oranges among foods that fight inflammation. Deep red, blue and purple fruits are rich in anthocyanins, a group of polyphenols studied for antioxidant and anti-inflammatory effects.
Fruit is also an easy swap for sugary snacks and sweetened drinks. Those are on Harvard’s list of foods to limit, and they are linked with the blood-sugar swings many people notice as irritability or a mid-afternoon crash. Frozen berries count and cost less out of season.
Caveat: Fruit juice has little fiber and acts more like a sweetened drink. Whole fruit is the better choice.
5. Nuts and seeds: walnuts, almonds, flax, chia
Healthy fats, fiber, magnesium
Nuts appear on Harvard’s anti-inflammatory list, and walnuts, flax and chia also provide ALA, the plant form of omega-3. In PREDIMED, one Mediterranean-diet group was given mixed nuts every day. That group had a lower rate of depression than the low-fat group, but the difference was not statistically significant overall. It did reach significance among people with type 2 diabetes.
A small handful a day, about an ounce, is the usual serving. It makes a filling snack that keeps blood sugar steadier than crackers or chips.
Source: Sánchez-Villegas et al., PREDIMED depression analysis (PMC)
6. Beans, lentils and whole grains
Fiber for the gut microbiome
Legumes and intact whole grains such as oats, barley, brown rice and farro supply the fermentable fiber gut bacteria feed on. The BMJ food-and-mood review names the gut microbiome and blood-sugar control as two ways diet may affect mood, and fiber touches both.
Both groups were core parts of the SMILES diet. They also replace the refined carbohydrates, such as white bread and pastries, that Harvard lists as inflammatory. Try one bean-based meal a day, or swap a refined grain for a whole one at breakfast.
Caveat: If you have irritable bowel symptoms, add fiber gradually. A dietitian can help you find which beans and grains you tolerate.
7. Fermented foods: yogurt, kefir, kimchi, sauerkraut
Live cultures and the microbiome
In a 10-week Stanford study published in Cell, healthy adults who ate more fermented foods had greater gut microbiome diversity and lower levels of several inflammatory markers. A high-fiber group in the same study did not show those changes over the same period. The study measured immune markers, not mood, but it is one of the clearer human studies linking a food group to inflammation.
Harvard Health’s nutritional psychiatry overview also points to fermented foods in traditional diets as natural sources of probiotics. Choose products labeled with live and active cultures and little added sugar.
Caveat: Kimchi and sauerkraut can be high in salt. If you take an MAOI antidepressant, ask your prescriber about aged and fermented foods, since some contain tyramine.
Source: Wastyk et al., Cell 2021 (PMC); Harvard Health: Nutritional psychiatry
8. Tomatoes and colorful vegetables
Lycopene, carotenoids, vitamin C
Tomatoes are the first item on Harvard’s anti-inflammatory list. Cooked tomatoes, such as in sauce, soup or roasted, provide lycopene in a form the body absorbs well, especially with a little olive oil. Peppers, carrots, squash and beets add other carotenoids and fiber.
The practical rule is variety: different colors carry different plant compounds. Aiming for three colors on the plate at lunch and dinner is easier to remember than tracking nutrients.
9. Turmeric and other culinary spices
Curcumin, ginger, cinnamon
Turmeric’s main compound, curcumin, is widely studied for anti-inflammatory effects, and cooking with turmeric, ginger and other spices is a flavorful way to make vegetables and beans more appealing. Pairing turmeric with black pepper improves curcumin absorption.
The National Center for Complementary and Integrative Health says there is not enough evidence to conclude whether turmeric or curcumin helps most health conditions. It also notes that liver injury has been reported with some high-absorption curcumin supplements.
Caveat: Culinary amounts are low risk. Check with your prescriber before taking curcumin supplements, and stop and seek care if you notice dark urine, yellowing skin or unusual fatigue.
Source: NCCIH: Turmeric
10. The pattern that ties it together
Mediterranean-style eating
No single food on this list does much by itself. The research signal comes from whole patterns. In the SMILES trial, 67 adults with moderate to severe depression were randomized to dietary coaching based on a modified Mediterranean diet or to social support. Over 12 weeks, the diet group improved more on a standard depression scale. Most participants were already in therapy, on medication or both, and the diet was added to that care.
Harvard Health’s summary of observational research reports that people who eat traditional Mediterranean or Japanese diets have a 25% to 35% lower risk of depression than people eating a typical Western diet. That is a correlation, not proof of cause, but it points the same way as the trials.
Source: Jacka et al., SMILES trial (PMC); Harvard Health: Nutritional psychiatry
What to eat less of
Harvard Health’s list of foods that promote inflammation is short: refined carbohydrates such as white bread and pastries, fried foods, soda and other sugar-sweetened drinks, red and processed meats, and margarine, shortening and lard. You do not need to cut them out completely. Shifting the balance toward the foods above tends to crowd them out.
When food is not the whole answer
Diet is one input among many. If low mood, anxiety or brain fog persist despite solid eating habits, there may be something else going on, such as a thyroid problem, low vitamin D or B12, iron deficiency, blood-sugar dysregulation or chronic inflammation. Those can be checked with labs. Our nutritional psychiatry work at Willow & Stone starts with that kind of workup, and we coordinate diet changes with any medication you take.
Common Questions
Can an anti-inflammatory diet cure depression or anxiety?
No food or diet has been shown to cure either condition. A small randomized trial and many observational studies suggest a Mediterranean-style pattern may help some people alongside usual treatment.
Should I take fish oil instead of eating fish?
Research on omega-3 supplements for depression is mixed, and NCCIH calls the benefit uncertain. Supplements can interact with some medications, so ask your prescriber before starting one.
How long before diet changes affect mood?
In the SMILES trial, outcomes were measured at 12 weeks. Changes in energy and digestion may show up sooner, but give a new pattern a few months before judging it.
Do I need to go gluten-free or dairy-free?
Not unless you have a diagnosed condition such as celiac disease or a confirmed intolerance. Unnecessary restriction can make eating harder to sustain, so talk to your clinician or a dietitian first.
Sources
- Firth et al. Food and mood: how do diet and nutrition affect mental wellbeing? BMJ 2020
- Jacka et al. SMILES randomized trial, BMC Medicine 2017
- Harvard Health: Foods that fight inflammation
- NCCIH: Probiotics — what you need to know
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