12 Scientifically Best Foods for Brain Health
Some of us need to remember where we left our keys, while others need to power through a 3 P.M. meeting without spacing out. The good news is that no matter what your particular flavor of brain fog is, you don’t need to look any further than the grocery store.
Turns out, what you eat seriously affects how your brain functions, feels, and focuses. In fact, decades of research now show that certain foods can help protect your brain, boost memory, and maybe even delay age-related decline. So, if you want to feel a little more locked in, here's your menu for mental performance.
Why Does Nutrition Matter for the Brain?
Your brain is incredibly high-maintenance. It uses about 20% of your body’s energy, and without the right nutrients, it’s running on fumes.
Here’s what it’s craving:
- Omega-3 Fatty Acids: Build and repair brain cells.
- Antioxidants: Protect your brain from oxidative stress.
- B Vitamins: Help with neurotransmitter function and energy production.
- Polyphenols: Found in plants, they improve blood flow to the brain and reduce inflammation.
- Amino Acids: Help produce calming neurotransmitters like serotonin and dopamine.
- Glucose (From Whole Carbs): The brain’s primary energy source.
Top 12 Foods for Brain Health
So, we’ve got the building blocks, and we know what nutrients the brain needs. Now all that’s left to do is put it all together. Read on for some of the best foods for brain health.
1. Fatty Fish
Salmon, mackerel, sardines, and trout are all loaded with docosahexaenoic acid (DHA), a type of omega-3 fatty acid that supercharges your neurons. Studies show that higher DHA intake is linked to improved memory, faster cognitive processing, and even reduced risk of Alzheimer’s. Try eating fish two to three times a week or sneak in omega-3s with high-quality fish oil or algal oil (a plant-based option).
2. Lion’s Mane Mushroom
Lion’s mane contains compounds called hericenones and erinacines that can encourage the body’s production of nerve growth factor (NGF), opens in a new tab. This compound helps your brain form new neurons and repair old ones.
Animal studies and early human trials also suggest this mushroom may support memory, ease symptoms of mild cognitive impairment, and encourage focus. You can cook it like scallops (pan-seared with garlic, thank us later) or take it as a supplement or powder.
For instance, it’s one of the starring ingredients in our Mushroom Coffee+. In this blend, you’ll also find antioxidant-rich chaga, Arabica coffee extract, L-theanine, and bovine collagen protein.
3. Berries
Tiny but mighty, berries — especially blueberries — are packed with flavonoids, which are antioxidants that have been shown to improve memory and delay brain aging. Research from Harvard and other institutions links regular berry intake to better cognitive performance, opens in a new tab and slower cognitive decline.
These compounds also fight inflammation and boost communication between brain cells. Toss them in a smoothie, add to oatmeal, or just eat them by the handful (no judgement here!).
4. Leafy Greens
Mom was right: Eat your greens. Spinach, kale, arugula, and collard greens are rich in vitamin K, lutein, folate, and beta carotene, which are all nutrients shown to slow cognitive decline.
In fact, one study found that people who ate one serving of leafy greens per day had brains that functioned like they were 11 years younger, opens in a new tab. Read that again: Eleven. Years. Younger. To take advantage of this, try sautéed kale with garlic, toss raw spinach into a smoothie, or sneak arugula into your sandwich.
5. Green Tea and L-Theanine
Green tea contains L-theanine, an amino acid that can encourage feelings of relaxation without drowsiness and also help you feel more focused. Combined with the modest caffeine content, green tea boosts alertness, memory, and mood.
Multiple studies also show that L-theanine can encourage alpha brain wave activity, opens in a new tab, which contributes to the sweet spot between calm and focused. Sip a warm cup in the morning or mid-afternoon, or try a mushroom matcha latte, opens in a new tab for an extra kick of antioxidants.
6. Nuts and Seeds
Nuts and seeds are what you need. Walnuts, in particular, are high in ALA, a plant-based omega-3 that supports cognitive function. Almonds and sunflower seeds are also great for vitamin E, which protects cells from oxidative stress and may support cognitive function, opens in a new tab.
Sprinkle chia or flax seeds on yogurt or blend them into smoothies for a fiber-and-fat boost. You can also keep a trail mix stash in your bag to feed both brain and belly on the go.
7. Whole Grains
If you think carbs are the enemy, think again — your brain actually thrives on them. Whole grains like oats, quinoa, farro, and brown rice provide slow-digesting glucose that keeps your brain fueled for hours.
Plus, they’re rich in B vitamins, which support memory and focus. One study even linked whole grain consumption with better mood and cognitive performance, opens in a new tab. Start your day with steel-cut oats, or make a grain bowl with quinoa, leafy greens, and roasted veggies.
8. Eggs
Eggs are rich in choline, a nutrient that helps produce acetylcholine. This chemical is a neurotransmitter tied to memory and mood. Most people don’t get enough choline, and eggs (especially the yolks!) are one of the best sources.
They’re also packed with B vitamins like B12 and folate, which help reduce brain shrinkage, opens in a new tab and delay cognitive decline. Scramble them, boil them, poach them, or toss one on top of your grain bowl for a little extra shot of nutrition.
9. Dark Chocolate
Yes, your brain wants you to eat chocolate — but make it dark, like at least 70% cacao. Dark chocolate is full of flavanols, which are plant compounds that boost blood flow to the brain, improve mood, and enhance memory and reaction time.
It also contains a bit of caffeine, opens in a new tab and theobromine, which can give your brain a gentle lift. One study showed improved cognitive performance just two hours after eating dark chocolate, opens in a new tab. Snack on a square or melt it into oatmeal—just keep portions reasonable (or don’t, we’re not judging).
10. Coffee
Coffee lovers, rejoice! Your morning brew doesn’t just wake you up. It can also help you stay dialed in and focused. Caffeine can support alertness, short-term memory, and reaction time by blocking adenosine, the chemical that makes you feel sleepy.
However, in high doses, caffeine can also cause jitters, nausea, and a whole host of other side effects. That’s why each dose of our Mushroom Coffee contains only 45 to 90 mg of caffeine, depending on whether you opt for our mild or medium roast. It’s enough to help you wake up, without sending your nervous system into overdrive.
11. Olive Oil
Extra virgin olive oil is liquid gold for your gray matter. It’s packed with monounsaturated fats and polyphenols that reduce inflammation and oxidative stress, which are both key factors in cognitive aging.
The MIND and Mediterranean diets both highlight olive oil as a brain-friendly fat, and studies suggest it may help improve memory and reduce the risk of Alzheimer’s, opens in a new tab. Drizzle it over salads, roasted veggies, or even your morning toast instead of butter. Just don’t cook it on blazing heat, as it’ll lose the wonderful compounds that make it so healthy.
12. Tomatoes
Tomatoes contain lycopene, a powerful antioxidant that may help protect against free radical damage linked to dementia, opens in a new tab. Cooked tomatoes (like in sauce or roasted) actually increase lycopene availability.
They’re also a good source of vitamin C and folate, both important for brain function. Try slow-roasting cherry tomatoes for a sweet-savory snack or stir tomato paste into soups and stews for a little extra flavor and a lot of extra brain power.
The Bottom Line
Your brain is constantly working, so it deserves some premium fuel. The right foods can improve memory, focus, and long-term cognitive health while tasting pretty great along the way.
Whether you’re sprinkling seeds on your salad or sipping some mushroom matcha in the morning, every bite (and sip) counts. And if you want to support your brain health, check out our collection of brain-supporting mushroom blends, opens in a new tab.
Sources:
Brain power | PMC, opens in a new tab
Lycopene: A Potent Antioxidant with Multiple Health Benefits | PMC, opens in a new tab
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