The happiness diet: 7 best mood-boosting foods, from nutrition and brain experts

By Leslie Finlay

For decades, our culture has focused on the connection between healthy eating and physiological wellness – most of all, related to weight. But out of a pandemic that made mental health a hot topic, you might also be gaining an awareness that the foods you eat can seriously affect your mind.

Research published in The British Medical Journal says the human diet plays a major role in how both our body and our brain are feeling. Poor nutrition can lead to experiences like depression, anxiety, aggression (there’s a reason the word ‘hangry’ exists!). But improving your diet, and knowing the right foods to eat, may help your mental health.

Registered dietitian and certified intuitive eating counsellor Rachel Engelhart, says certain foods can support your body’s processes that are responsible for positive moods and strong energy levels. Here’s Engelhart’s list of the greatest good-mood foods.

Fatty Fish

Seafood like salmon, mackerel, and canned tuna are rich in omega-3 fatty acids, which are ‘healthy fats’ with benefits throughout your body from your heart to your eyes – and your brain.

“Omega-3 fatty acids are anti-inflammatory and have the ability to cross into the brain, having a direct effect on mood-regulating molecules and neurotransmitters there,” says dietitian Kelsey Lorencz. Research has consistently linked low levels of omega-3s with mood disorders like depression and anxiety – and, according to a review published in Frontiers in Physiology, most of us don’t get enough omega-3 fats in our diet.

Yoghurt

“The bacteria in your gut can actually produce feel-good neurotransmitters like serotonin and dopamine,” says Lorencz. Research has identified a particular bacterium that may have a strong impact on triggering these chemicals: it’s a strain called Lactobacillus. One study published in the journal Nature found that feeding our gut with this good bacteria – found naturally in foods like yoghurt, kefir, sauerkraut and kimchi, doesn’t just keep the blues at bay, it can increase our resilience in the face of stress.

Recalling favourite memories can also improve your health.

Bananas

Bananas aren’t just shaped like a smile, they’re a mood-boosting powerhouse. That’s in part because they’re also high in vitamin B6, one nutrient behind the production of the ‘happiness hormone’ serotonin. Bananas contain prebiotic fibre, which, along with that Lactobacillus, are essential for gut health that promote a happy brain.

Bonus: bananas may also help you get a great night’s sleep, which can definitely be an outlook-lifter.

If, after eating a banana sleep is still alluding you, try these 10 relaxation techniques.

Cottage Cheese

“The amino acid L-tyrosine is needed to make dopamine and norepinephrine, two neurotransmitters that affect our mood and can easily become depleted,” Lorencz says. She points to high sources like soy products, chicken, fish, nuts, seeds, avocados and bananas. But cottage cheese has a whopping amount of this amino acid, along with a few other mood-boosters in its arsenal. It’s high in protein, which is essential for our body to make and use its mood-promoting hormones, Engelhart says. (This protein is casein protein, which our body absorbs slowly – sustaining energy levels – and may contribute to elevated moods, according to ongoing research.)

Cottage cheese also contains selenium, a mineral that Nutrients research has suggested may be linked with lower rates of depression.

Nuts and Seeds

Magnesium is a mineral that supports our body’s energy production – and not getting enough can lead to irritability, anxiety, sleeplessness and agitation, says Lorencz. Nuts like almonds, walnuts, cashews and seeds like pumpkin, chia and sesame are great sources of this vital nutrient, as well as tryptophan, an amino acid associated with good moods.

Nuts and seeds can also be great vegetarian sources of those crucial omega-3 fatty acids.

Oysters

The ages-old wives’ tale about oysters as aphrodisiacs is still out for debate…but even minus the physical excitement, oysters can elevate one’s mood. They pack the highest zinc content of any food – a nutrient that’s linked with anxiety and depression when we’re deficient, says Lorencz – and contain tyrosine, an amino acid that helps our body produce the ‘feel good’ hormone dopamine. That’s great news for the shellfish-loving set.

If you’re eating the right foods but still don’t feel at peak health, perhaps your posture is to blame.

Ice Cream

“Having a varied diet is the best way to set your body up to produce the ‘feel good’ hormones that it needs,” Engelhart says, adding an important point: while this nutritious balance is important, so is treating yourself to foods you enjoy. “So many of my clients are hard on themselves and rather judgemental around their food choices, and it negatively impacts their mood,” she says. “Sprinkling our day with a delicious coffee, a yummy dessert, or one of our favourite restaurant meals is also an important way to positively impact our mental health.”

And if you want to be strategic about that treat, reach for some dark chocolate. Chocolate contains natural serotonin, and 2022 research found that dark chocolate has prebiotic effects in our gut, supporting stronger mental health.

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Source: RD.com