It’s almost impossible to overstate the importance of brain health. The brain is the control centre of the whole body: it keeps your heart beating, lungs breathing, limbs moving, and allows you to think, feel, and speak.
Yet, when focusing on our overall health and well-being, it can be easy to overlook the importance of taking steps to preserve the physical health of our brains.
Diet has been shown to play a significant role in maintaining a healthy brain and there are plenty of foods that have been proven to help keep our brains healthy, enhance memory and focus, and even improve our ability to do certain tasks.
With this in mind, here are 10 foods that can help to boost brain health.
1. Broccoli
Broccoli is packed full of powerful plant nutrients. It’s a great source of vitamin K – just 100g of broccoli contains more than 100% of the Recommended Daily Allowance (RDA).
Vitamin K has been shown to improve cognitive function and brainpower, and several studies in older adults link an increased vitamin K intake to improved memory. Broccoli also contains compounds called glucosinolates, which help keep the central nervous system healthy and, in turn, keep memory sharp.
Broccoli is packed with plenty of other vital vitamins and minerals too, and its anti-inflammatory and antioxidant properties may also help protect the brain and keep it functioning at its peak.
The beauty of broccoli is that it’s incredibly versatile and can be served with pretty much any cuisine or dish. If you’re looking for some broccoli-based inspiration, check out some of these tasty broccoli recipes from BBC Good Food.
2. Oily fish
Oily fish is a good source of omega-3 essential fatty acids. Essential fatty acids can’t be made by the body, which means they must be obtained through our diet.
Because they help build membranes around each brain and nerve cell, omega-3 fats can improve the structure of neurons, which are the basic working units of our brain.
Omega-3 fats may help reduce the risk of dementia and Alzheimer’s disease, slow cognitive decline, improve memory, reduce stress, and even produce serotonin – the happy hormone. This study found that people with higher levels of omega-3s had improved blood flow to the brain and better cognitive abilities.
The most effective omega-3 fats are found in oily fish like salmon, trout, mackerel, herring, sardines, pilchards, and kippers. Check these delicious oily fish recipes from The Guardian for some inspiration.
If you don’t eat fish, you can still get your omega-3 fats from plant sources like flaxseed, soya beans, pumpkin seeds, and walnuts (more on these later). Alternatively, if you think you’re not getting enough omega-3 from your diet, you might want to speak to your GP about whether supplements could be helpful for you.
Omega-3 supplements are usually made from fish oils – but if you’re vegetarian or vegan – you can take a plant-based omega-3 supplement.
3. Berries
Berries like blueberries contain anthocyanins; a group of plant compounds that have powerful anti-inflammatory and antioxidant effects. Antioxidants help prevent inflammation, which can decrease your chances of suffering from neurodegenerative diseases.
This study also revealed that the antioxidants in berries can improve communication between brain cells and increase plasticity (the brain’s ability to rewire itself). Improved communication and plasticity can help brain cells make new connections, which can not only enhance learning and memory but can also help to reduce or delay cognitive decline.
The natural plant pigments that give berries their vivid colour are called flavonoids, and they can also help improve memory.
Blueberries are generally seen as the ‘best’ berry for boosting brain health (this study found that eating blueberries may improve or delay short-term memory loss), but other deep-coloured berries, like strawberries, blackberries, blueberries, blackcurrants, and mulberries are also considered great brain foods too.
A helpful way to make sure you eat berries regularly is to sprinkle them onto your breakfast cereal or porridge, or make a daily smoothie. Alternatively, a handful of berries make a delicious and healthy snack.
4. Avocados
Avocados are a great source of healthy unsaturated fat, which has been shown to reduce blood pressure.
High blood pressure is associated with cognitive decline and this study found that people over 50 who ate one avocado a day for six months saw significant improvement in both their memory and problem-solving skills.
Another benefit of avocados is that they’re packed with many of the nutrients that are most valuable for the brain – such as folate, vitamin C, vitamin E, and copper.
Avocados are delicious in sandwiches, salads, dips (like guacamole), or simply on toast.
5. Dark chocolate
There’s good news for chocoholics as dark chocolate can be effective in boosting brain health.
Dark chocolate contains cacao, which is packed with brain-boosting flavonoids, caffeine, and antioxidants. The flavonoids found in dark chocolate are especially good for the brain as they stimulate blood flow and encourage the growth of blood vessels and neurons in the areas that handle memory and learning.
One study found that people who regularly ate dark chocolate performed better in mental tasks than people who rarely ate it. Another study discovered that eating dark chocolate containing at least 70% cacao may improve brain plasticity.
While eating a few squares of dark chocolate each day is health-boosting, you should be careful not to eat too much as it’s high in calories. Eating around 30–60g of dark chocolate a day is recommended.
The higher the cacao content, the better, so ideally try to look for chocolate that’s at least 70% cacao. Unfortunately, milk and white chocolate don’t have the same benefits!
6. Soya products
Soya bean products like tofu, edamame beans, soya milk, tempeh, and soya-based meat alternatives are packed with a special type of antioxidant called polyphenol.
Multiple studies link polyphenols with both a decreased risk of dementia and enhanced cognitive abilities. The polyphenols found in soya products are called isoflavones, which act as antioxidants and can provide a variety of powerful health benefits throughout the body.
Soya products are also good sources of omega-3 fatty acids, which are important for brain function, maintaining a healthy heart, strengthening joints, and improving general well-being.
B vitamins are present in soya products too, which have been shown to reduce the risk of stroke, cognitive impairment, and dementia, as well as play a key role in regulating normal brain function.
Check out these delicious tofu recipes from BBC Good Food – or these recipes from Self, made with tofu’s even healthier cousin, tempeh.
7. Whole grains
Just like the rest of your body, your brain needs energy to function. To concentrate and focus at its peak, the brain needs a steady supply of slow-release energy – and these are best sourced from whole grains.
Whole grains like brown rice, barley, quinoa, bulgur wheat, oats, and whole grain bread and pasta are best, as they release energy more slowly, helping you feel energetic and alert for longer – all while avoiding sugar highs and lows.
If you’d like to get more creative in the kitchen, check out these 9 healthy whole grains to add to your diet.
8. Tomatoes
Tomatoes may offer serious brain-boosting properties. They contain lycopene, a powerful antioxidant that can help protect the brain against free radicals (unstable atoms that can damage brain cells). Free radical damage has been seen to occur during the onset of dementia – especially Alzheimer’s disease.
Plus, tomatoes are a great source of vitamin C, which acts as an antioxidant and supports general brain health as you age.
Because tomatoes release more lycopene when they’re cooked, it’s best to cook them rather than eating them raw – although, raw tomatoes will still boost your vitamin C levels of course!
Adding a splash of olive oil to your cooked tomatoes helps your body absorb the nutrients better. For ideas on how to add more tomatoes to your diet, check out these tomato recipes from Delicious.
9. Nuts and seeds
There’s lots of evidence to suggest that eating nuts and seeds can boost brain health.
Research shows that eating tree nuts can improve heart health – which is strongly linked to brain health – and this scientific review found that nuts can improve cognition and ward off neurodegenerative diseases.
Another study discovered that women who regularly ate nuts had a better memory compared to those who didn’t.
Walnuts, flaxseed, and pumpkin seeds are especially good for you as they contain plenty of health-boosting omega-3 fatty acids and antioxidants. Almonds and cashews are also very high in zinc, which is essential for improving memory and cognition. While all tree nuts are good for your brain, walnuts are probably best because of the high levels of omega-3 they contain.
Nuts and seeds are also high in the antioxidant vitamin E, which protects cells from free radicals. This study suggests that vitamin E might improve cognition and lower the risk of developing Alzheimer’s disease. The nuts and seeds containing the most vitamin E include sunflower seeds, almonds, and hazelnuts.
Nuts are great for snacking on, but there are also lots of tasty ways to include them in your cooking: have a look at One Green Planet’s selection of nut recipes that take nuts to a whole new level.
10. Coffee
If you can’t fathom starting your morning off without a cup of coffee, there’s good news. Coffee does more than just increase alertness and temporarily boost concentration.
Studies show that it can also improve memory and reduce the risk of stroke, as well as neurological diseases like Parkinson’s and Alzheimer’s. Because coffee contains lots of antioxidants, it’s been shown to maintain general brain health as we age too.
The caffeine in coffee also has powerful brain benefits. It blocks adenosine, a chemical that makes us sleepy, increasing alertness and making it easier to concentrate. Plus, it can have a positive effect on mood thanks to the feel-good neurotransmitters it contains, such as serotonin.
However, because it can adversely affect sleep and increase blood pressure, it’s important not to have too much coffee or to have it too close to bedtime. Experts suggest having no more than five cups of brewed coffee a day. If you don’t drink coffee, green and black tea also contain antioxidants and caffeine.
For coffee inspiration, check out our article: 10 ways to upgrade your morning coffee routine.
Final thoughts…
Because the foods listed above are so diverse, there are plenty of ways we can include them in our diets. Why not pick one or two of the suggestions and see how you can weave them into your normal routine? Often, it’s much easier to build one or two small changes into your diet than to try to change everything all at once!
Eating a healthy, balanced diet is one important way of keeping our brains healthy, but there are also other ways we can help optimise brain function.
Our article, Maintaining your brain health, offers more advice – from getting regular exercise to sleeping enough.
Are you focused on improving your brain health? Do you have any additional brain-boosting ideas? We’d love to hear your thoughts and experiences in the comments below.