Just as you might eat protein to aid muscle-building or
Vitamin C to ward off colds
and flu, certain Vitamins and minerals play a role in mental
health, including mood and mental disorders.
All aspects of our health are impacted by our diet,
especially our mental health.
Diets rich in vegetables,
fruits, meat, fish and whole grains have been linked to
better mental health outcomes than diets high in processed
foods, refined grains and sugary
products.
Ahead, a deep dive into the Vitamins and minerals we need to
help optimize mental health and lead healthier, happier
lives.
Nutrients We Need for Good Mental Health
While a majority of clinical research has focused on the
link between food
and depression, a growing body of evidence shows that
diet also affects other mental health disorders.
Some of
these mental health disorders include:
-
Anxiety
- Bipolar disorder
- Attention-deficit/hyperactivity disorder
(Nutritional psychiatry) is meant to work synergistically
with everything else you’re doing to support your overall
mental health by being an additional tool in your toolbox
for you to use.
Vitamins
Your body needs a wide range of Vitamins to
run optimally, and two Vitamins, in particular, may
contribute to better mental health:
Vitamin C combats inflammation to
keep you healthier during times of stress. A 2021
research review suggests that supplementation with
Vitamin C may produce mood-elevating effects in patients
with mild depression.
Another 2021 study in the European
Journal of Nutrition found that supplementation with
Vitamin C improved attentional
focus and performance on cognitive tasks in healthy
young adults.
Vitamin C is found in:
- Citrus fruits
- Peppers
- Strawberries
- Broccoli
- Brussels sprouts
Vitamin D is known as the "sunshine Vitamin"
because your body synthesizes it when exposed to sunlight
and supports overall well-being and mood. But many
Americans, research suggests, are deficient
in Vitamin D. A 2022
study found that supplementing with Vitamin D can
improve symptoms of depression.
The best sources of Vitamin
D are:
- Fatty fish like salmon and mackerel
- Egg yolks
- Some mushrooms
- Fortified dairy products
Minerals
The top
minerals for supporting good mental health include:
Selenium appears to influence mood, although the
correlation is not well understood. One 2022
meta-analysis (a review of existing research studies) in
the journal Nature noted that selenium appears to be
protective against postpartum
depression and may be beneficial for patients
with depression.
The best sources of selenium are:
- Brazil nuts
- Seafood, including oysters
- Meat and poultry
- Whole grains
Zinc deficiency has been associated with
depression and psychosis, research suggests, and a 2024
review found that zinc therapy can positively effect
people with anxiety.
Good sources of zinc include:
- Meat and poultry
- Seafood
- Legumes
- Nuts and seeds
- Whole grains
Potassium levels can have a significant impact on
mental wellness. People who have very low potassium
levels sometimes experience depression and even psychosis,
which can include hallucinations and delusions. A 2024 study
in the journal Brain
and Behavior found a correlation between lower potassium
levels and higher rates of depression and anxiety. You can
increase your potassium intake by eating more:
- Bananas
- Avocadoes
- Tomatoes
- Cantaloupe
- Potatoes
Magnesium helps regulate the body’s stress
response and is key to the production of serotonin, the
neurotransmitter responsible for elevating mood. A 2020
research review suggested that supplementing with
magnesium, either alone or in combination with
antidepressant medications, could help people with mental
health issues ranging from anxiety disorders and
schizophrenia to eating
disorders and ADHD.
Another 2021
study found that magnesium supplementation reduced
anxiety and stress and had an even greater effect when
combined with a Vitamin B6 supplement. As if that weren’t
enough, Magnesium glycinate has also been proven to improve restful
sleep.
Natural sources of magnesium include:
- Dark green leafy vegetables
- Nuts and seeds
- Beans
- Whole grains
- Bananas
Fiber
The brain and gut are
connected in many ways. You’ve probably felt this in action
if you've ever been anxious and gotten
diarrhea or felt
like you were going to throw up. That same connection
means what you eat influences how you feel.
The connection between nutrition and mental health starts in
the womb, according to a 2021
Australian study that found the mom’s gut microbiome
during pregnancy can influence behavioral outcomes two years
after the baby is born.
Most serotonin, a neurotransmitter involved in mood
stabilization is produced in the gut. Providing a healthy
gut environment where cells can produce the serotonin your
brain and body need is increasingly seen as a key aspect of
managing and preventing mental health problems.
That's where fiber comes in. Consuming enough dietary
fiber can help support a healthy, diverse gut
microbiome, which in turn supports healthy digestion and may
lead to a better mood, as well as a reduced likelihood of
depression, anxiety, and other mental health disorders. And research supports
the link between higher fiber and a lower risk of mental
health disorders.
Dietary sources of fiber:
- Dark green veggies, such as kale, spinach, arugula
and asparagus,
are great sources of magnesium, fiber, and Vitamins
and minerals that can contribute to improved mental
health. A 2022 study in the Journal
of the Academy of Nutrition and Dietetics found
that increased consumption of vegetables improved
happiness scores in a randomized controlled trial.
- Oranges and other citrus fruits are also great
sources of fiber, as well as Vitamin
C and antioxidants. A 2022
trial that focused on young adults with major
depressive disorder found that drinking orange juice
improved their symptoms.
- Whole grains, such as oats, brown rice, bulgur
and buckwheat, are a good source of complex
carbohydrates, which are slower to digest and
provide energy for a longer period than simple
carbohydrates. A
2023 review noted that whole grains, which have
been associated with a reduced risk of developing
cardiovascular disease and type 2 diabetes, may also
support better mental health.
Healthy fats
Fat is one of the three macronutrients, along with carbohydrates and
protein.
New research reveals a direct connection between dietary
fats and mental health, both positive and negative.
According to a 2020 study in the Annals
of General Psychiatry, diets containing high levels of
saturated fatty acids (which are found in poor-quality trans
fats and saturated fats, like those in meat and butter) were
associated with higher rates of anxiety. On the other hand,
the study found that diets higher in healthy fats – those
containing monounsaturated fatty acids (MUFAs), omega-3
fatty acids and polyunsaturated fatty acids (PUFAs) –
were associated with a lower incidence of anxiety.
A 2019
meta-analysis in the journal Nature found an overall
beneficial effect of omega-3 PUFAs on depression symptoms
compared to a placebo and suggested that supplementation
could be helpful for people with severe depression and inflammation.
A 2018
systematic review and meta-analysis also found that
treatment with PUFAs at a certain level eased anxiety.
Dietary sources of healthy fats:
- Fatty, cold-water fish, such as sardines, mackerel
and salmon, are good sources of omega-3 fatty acids
as well as protein, Vitamin D, magnesium and zinc.
- Olive oil contains a high amount of omega-3
fatty acids, making it beneficial for a range of
health conditions. A study
published in 2022 in the Journal of the Academy
of Nutrition and Dietetics found that extra-virgin
olive oil had an antidepressant effect in severely
depressed patients.
- Walnuts are also rich in omega-3 fatty acids, as
well as fiber, protein, magnesium and zinc. A 2022
study in the journal Nutrients noted that daily
consumption of walnuts protected against stress and
improved the diversity of the gut microbiome in
female study participants. Walnut consumption also
helped improve sleep over time; getting better
sleep may alleviate some of the symptoms
associated with depression, anxiety and other mental
health problems. Research from 2019 found
that people who ate nuts – particularly walnuts –
had a 26% lower risk of depression compared to those
who did not consume nuts.
Protein
Another macronutrient that can support good mental health is
protein, which is integral to synthesizing neurotransmitters
and brain chemicals that carry messages, including
serotonin, from one cell or nerve to another. When serotonin
levels are too low, depression, anxiety and other signs of mental
illness may follow.
The source of the protein is important. For example, a 2023
study in Iran found that women who consumed higher
levels of animal protein were more likely to report symptoms
of depression, anxiety and stress. On the other hand, plant-based
protein may improve depression, anxiety and stress,
according to a 2024 study in the journal BMC
Microbiology.
Dietary sources of protein:
- Eggs are a great source of protein as well as
Vitamin D, omega-3 fatty acids, B Vitamins and
selenium. They're also a good source of choline, a
mineral that supports healthy brain function and the
movement of neurotransmitters such as serotonin. A six-year
cohort study conducted in China and published in
BMC Psychiatry in 2023 found that egg consumption
was associated with a reduced risk of depressive
symptoms in older adults.
- Beans, lentils and peas – a group of foods called
legumes – are great plant-based
sources of protein. They're also packed with
fiber, omega-3 fatty acids, Vitamin B12, magnesium
and zinc. A
2020 study conducted in Iran found that men who
ate more legumes were less likely to be anxious than
men who didn’t eat as many.
Antioxidants
Inflammation has been associated with many chronic diseases,
including heart disease, diabetes, obesity, dementia and
cancer.
Inflammation, pain and
high levels of stress go hand in hand with depression,
anxiety, trauma and worsening of your mental health.
New research released in 2022 shined a light on the
connection between inflammation and major depressive
disorder via a leakier blood-brain barrier. This barrier is
designed to protect the brain from pathogens, but prolonged
high levels of inflammation may render it less effective.
When this occurs, inflammatory molecules can cross the
barrier and activate the brain’s specialized immune cells,
leading to inflammation within the brain.
Dietary sources of antioxidants:
- Brightly colored berries, such as blueberries,
blackberries and strawberries, are excellent sources
of antioxidants as well as fiber, Vitamins and
minerals. The brighter the berry’s color, the more
beneficial it may be, as those bright colors
indicate the presence of anthocyanins. These
powerful antioxidants reduce inflammation and
support brain health, including boosting mood. A
recent study in the journal Nature demonstrated
that strawberries may be particularly good for brain
health, reducing depression in overweight
individuals with insulin resistance and reducing
symptoms of cognitive
decline, a precursor to dementia.
Probiotics
Probiotics enhance the diversity of beneficial bacteria
in your microbiome, which is a key indicator of optimal gut
health and mental well-being
A 2024 study in the journal Brain,
Behavior, and
Immunity found that a bacterium in fermented foods,
called Lactobacillus, mey help prevent depression and
anxiety, and aid the body in managing
stress.
There are many probiotic supplements, but you can also get
probiotics from fermented foods. The fermentation process
promotes the growth of various good bacteria – including
lactobacillus, bifidobacterium, bacillus and pediococcus –
which help digestion and support a healthy and diverse
microbiome in your digestive system.
You'll also want to add prebiotic fiber, a type of fiber
that helps beneficial bacteria in the gut thrive.
Dietary sources of probiotics:
- Raw apple
cider vinegar
- Yogurt
- Kefir
- Kimchi
- Kombucha
- Pickles
- Miso
Look for fermented foods that contain live and active
cultures, and avoid those that have been canned or cooked,
as these processes destroy both beneficial and harmful
bacteria, potentially reducing the beneficial effects of
consuming fermented foods.
Dietary sources of prebiotics:
- Beans
- Bananas
- Berries
- Asparagus
- Dandelion greens
Nutrients to Avoid
Diets high in the following items can increase
the risk of depression:
- Animal fats
- Ultra-processed foods
- Red meat
- Processed meats
- High-fat dairy
- White potatoes and other simple starches
- Refined grains
- Alcohol
- Sugary foods and beverages