Diet and Mental Health

How Are Diet And Mental Health Linked?

What you eat affects all parts of your body, including your brain. Your brain is the control center of your body, dictating the function of every organ system and working round the clock. What you eat provides the building blocks your body uses for its daily functions and the structures and systems it uses to perform its vital functions. What you eat can also affect the neurotransmitters in your brain, which directly affects your mood.

There are key nutrients that your body needs to support your brain health. For example, your body needs proteins to build muscle and carbohydrates to create glucose and fuel your brain. Fats also play a key role in your body’s functions, including hormone development and regulation. Your body also depends on minerals and other micronutrients to function at a high level.

A diet with low nutritional value, such as one that is high in refined sugars, can cause inflammation and stress on your body and brain, which can lead to poor brain function and worsening mood problems.

What Should I Eat To Boost My Mental Health?

Several foods can boost your mental health. Some of these foods may be high in the neurotransmitter’s dopamine and serotonin, which play a role in depression and anxiety including:

• Fruits and vegetables
• Whole grains
• Lean meats
• Fish and other seafood
• Nuts and legumes
• Dairy products, especially low-fat dairy
• Healthy oils such as olive oil

Other foods are all full of nutrients such as zinc, folate, magnesium, B vitamins, omega-3 fatty acids, fiber, iron, and vitamin C. They include:

• Whole grains
• Lean meats such as poultry
• Fish
• Nuts and legumes
• Low-fat dairy products
• Oils that are high in omega-3 fatty acids such as olive oil
• Fruits and vegetables

Foods high in salt, fat, or sugar or highly processed may have the opposite effect on your mood. These foods should be eaten as little as possible or in moderation. Examples of these types of food include:

• Processed foods
• Refined grains such as white rice and white flour
• Processed meats such as lunch meats
• Red meats
• Beverages sweetened with sugar
• Candy, pastries, and other sugary foods

Limiting these foods can have a positive impact on your mood.

Examples Of Healthy Diets And Foods

Choosing the right diet option can be challenging. The first step is talking with your healthcare provider. Your dietary needs may be different if you have any chronic health conditions, such as high blood pressure or diabetes.

Diets Heavy In Fruits And Vegetables

In general, diets focused on fruits, vegetables, and foods with omega-3 fatty acids have been shown to boost mood. A 2019 study in the American Journal of Clinical Nutrition showed that vegetables in particular had a positive effect on psychological health. This supports the idea that certain foods can boost brain function.

The Mediterranean Diet

Another diet that has been shown to have positive effects on depression symptoms is the Mediterranean diet. This diet emphasizes plant-based foods, whole grains, and healthy fats such as extra virgin olive oil. The proteins recommended in the Mediterranean diet are fish and seafood, which are high in omega-3 fatty acids and can help increase serotonin levels.

The Paleo Diet

The paleolithic (aka paleo) diet is another popular diet. Recent studies have shown that the paleo diet may decrease the risk of depression, anxiety, and stress. The paleo diet, and the Mediterranean diet for that matter, are high in antioxidants that may improve inflammation and oxidative stress, which is believed to play a role in mental health disorders. This diet is also high in micronutrients like magnesium, folic acid (a B vitamin), and vitamin C.

The Keto Diet

The ketogenic diet has been shown to improve symptoms of some neurologic conditions, such as epilepsy and Parkinson’s disease. A study in Frontiers in Psychiatry showed that patients who were on the ketogenic diet showed improvements in their depression severity scores. The study authors believed this was due to the carbohydrate restrictions associated with this diet.

The data are mixed when it comes to whether a vegetarian or vegan diet has a benefit for mental health. One recent meta-analysis in Nutrition Reviews showed that vegan and vegetarian diets may be related to a higher risk of depression but a lower risk of anxiety.

Biology Of Nutrition

The biology of nutrition is a complex system that is more than carbohydrates, proteins, and fats. Several intertwined systems are involved in nutrition and its effects on the body and mental health.

Serotonin Production

Serotonin is a neurotransmitter intimately involved in regulating sleep, appetite, moods, and pain control. Most serotonin in your body is made in the intestinal tract, which is lined with millions of nerve cells that help with the work of the digestive system and play a role in mental health. These neurons and serotonin also play a role in other functions of the gut and mental health, such as the gut microbiome.

Gut Microbiome

The gut microbiome is an ecosystem of millions of bacteria and other organisms that live in your intestines. Many different types of gut bacteria play a role in your physical and mental health, including:

• Anxiety
• Depression
• Bipolar disorder
• Autism spectrum disorder
• Schizophrenia

Dietary fibers strengthen the gut microbiome. These fibers are fermented by the gut bacteria and improve the mucosal barrier. A healthy, well-rounded diet also improves the diversity of the gut microbiome, which can help improve the epithelial barrier and the strength of the mucosal layer.

Immune System Function

The immune system is another complex body system that plays a strong role in mental health and is influenced by what you eat. The link between the immune system and mental health is not fully understood, but multiple studies have demonstrated a link between the two.How nutrition affects the immune system is also a very heavily studied topic. The studies all point to the fact that a diet rich in nutrients is vital for optimal immune system function.

Nervous System

The nervous system is composed of your brain, spinal cord, and the nerves that provide motor and sensory control of your body. Many micronutrients affect your nervous system. Your body’s nutrition also plays a pivotal role in the production of the neurotransmitters in the brain that affect your mood and mental health. Many nutrients have been shown to have a protective effect on the nervous system, including:

• Amino acids such as tryptophan, phenylalanine, tyrosine, and taurine
• Glucose
• Vitamins such as C, E, D, B12, B6, B4, and B1
• Minerals including selenium, zinc, magnesium, sodium, iron, copper, manganese, and iodine

A diet that isn’t well-rounded and lacks nutrients can lead to imbalanced neurotransmitters and worsening mental health.

Stress And Depression’s Impact On Diet

Healthy eating habits are associated with lowered stress levels and decreased depression symptoms. Depression and stress are often related to poor eating habits, which makes this a vicious cycle.

When people are depressed or stressed, they may overeat, undereat, or eat unhealthy foods. Depression and stress cause fatigue and loss of motivation, which may cause people to reach for highly processed foods because they are “easy” and don’t require as much effort to prepare. These unhealthy eating habits can further worsen your mood.

What Is Mindful Eating?

Mindfulness is a technique stemming from Zen Buddhism that has become popular for managing a number of mental health conditions and may help people change their eating behaviors.

In mindful eating, you focus on being aware and present in the moment. Focus on the awareness and experience of the food without judgment. The goal is to be fully present in the eating experience and savor the movement and the food you eat. This mindfulness may make you more aware of the effects of poor diet and mental health.

Tips For Healthy Eating

The Centers for Disease Control and Prevention (CDC) offers several tips for healthy eating:

• Fruits and vegetables should be the main focus.
• Low-fat dairy options that contain calcium and other important nutrients should be included.
• Lean meats such as protein or seafood are better choices than red meats.
• You can still enjoy comfort foods, but eat them in smaller amounts and sparingly.

If you’re working on improving your diet, take it day by day and look at what swaps you can make to improve your eating habits over time.

Feeding Your Body Properly

If you’re looking for optimal diet options for your mental health, focus on fruits, vegetables, lean meats, and healthy fats. Foods that decrease your body’s inflammation and oxidative stress, as well as those that promote neurotransmitters such as serotonin and dopamine, can improve your mood.

Properly feeding your body is one way to help support your mental health and continue toward a healthy, happy life.