Food is Medicine: How Nutrition Can Support Mental Health and Mood

What you eat affects more than your physical health. It can also affect your mood, energy, focus, and overall mental health.

Scientists continue to learn more about the connection between food and the brain. While healthy eating is not a cure for depression, anxiety, or other mental health conditions, it can help support the body and mind in important ways.

At Gloria Gates CARE, our Registered Dietitian works closely with our Medical and Behavioral Health teams to help members improve their health through nutrition. By working together, we can better support both physical and mental wellness.

Many of our members meet with our Dietitian for help managing diabetes, heart disease, high cholesterol, weight concerns, and other health conditions. We also talk about how food choices can affect mental health and emotional well-being.

How Nutrition Affects Mental Health

Your brain works hard every day. It controls your thoughts, memory, emotions, sleep, breathing, and stress levels. To do all of that, it needs a steady supply of nutrients from the foods you eat.

When you regularly eat balanced meals, your body gets the fuel it needs to support healthy brain function. This can help improve energy, focus, and mood.

Mental health is affected by many things, including sleep, stress, relationships, exercise, genetics, and life experiences. Food is just one piece of the puzzle. However, healthy eating habits can be an important part of the supporting mental wellness.

As Gloria Gates CARE Dietitian McKenna Elder, MS, RDN, LPN explains:

“Food does not simply fill the stomach. Food provides the raw materials the body uses to support brain health, energy, and mood.”

Understanding the Gut-Brain Connection

Have you ever felt “butterflies” in your stomach when you’re nervous? That’s one example of the connection between your gut and your brain.

The gut-brain connection is the way your digestive system and brain communicate with each other.

Your gut contains trillions of helpful bacteria, known as the gut microbiome. These bacteria help digest food, absorb nutrients, support your immune system, and send messages to your brain.

In fact, about 95% of the body’s serotonin is made in the gut. Serotonin is a chemical that helps regulate mood, sleep, and appetite.

When your gut is healthy, it may help support better overall wellness. When gut health is out of balance, people may notice symptoms such as:

• Stomach problems
• Fatigue
• Brain fog
• Increased stress
• Low mood

This is one reason why gut health is becoming an important part of conversations about mental health.

How Blood Sugar and Inflammation Affect Mood

The foods we eat can also affect blood sugar levels and inflammation in the body.

When people skip meals or eat a lot of sugary foods and refined carbohydrates, their blood sugar can rise and fall quickly. These ups and downs can lead to:

• Low energy
• Irritability
• Trouble focusing
• Mood swings
• Strong cravings

Over time, diets high in processed foods and added sugars may also increase inflammation in the body. Research suggests that chronic inflammation may play a role in both physical and mental health concerns.

Eating regular, balanced meals can help keep energy levels steady and support overall well-being.

Foods That Support Mental Health and Brain Health

There is no single food that can prevent or treat mental health conditions. However, some foods provide important nutrients that support brain function and overall health.

Fatty Fish

Fish such as salmon, tuna, sardines, and trout contain omega-3 fats. These healthy fats support brain health and may help reduce inflammation.

Fruits and Vegetables

Colorful fruits and vegetables provide vitamins, minerals, fiber, and antioxidants that help keep the body healthy.

Some great choices include:

• Berries
• Leafy greens
• Oranges
• Bell peppers
• Tomatoes
• Carrots

Whole Grains and High-Fiber Foods

Foods such as oatmeal, brown rice, quinoa, beans, lentils, sweet potatoes, and whole-grain bread provide steady energy throughout the day.

Fiber also helps feeds the healthy bacteria in your gut.

Protein-Rich Foods

Protein helps your body build and repair tissues. It also helps produce chemicals that support mood and brain function.

Good sources of protein include:

• Eggs
• Chicken
• Fish
• Greek yogurt
• Cottage cheese
• Beans
• Tofu

Healthy Fats

Healthy fats help support brain health and keep you feeling satisfied after meals.

Try adding:

• Avocados
• Olive oil
• Nuts
• Seeds
• Nut butter

Fermented Foods

Foods such as yogurt, kefir, kimchi, and sauerkraut may help support a healthy gut microbiome.

Foods to Enjoy in Moderation

Healthy eating does not mean giving up all of your favorite foods.

As McKenna Elder says:

“No food needs to be completely off-limits. It’s more about balance than restriction.”

Instead of focusing on foods you should avoid, think about ways to make meals more balanced.

Foods to enjoy in moderation include:

• Sugary drinks
• Sweet coffee dirnks
• Processed snack foods
• Fast food
• Fried foods
• Alcohol
• Sweets and desserts

A helpful question to ask yourself is:

“What can I add to make this meal more balanced?”

You might add:

• A source of protein
• A fruit or vegetable
• A higher-fiber food
• A glass of water

Small changes can make a big difference over time.

Food is One Part of Whole-Person Health

As Gloria Gates CARE, Behavioral Health Therapist Courtney Blair, LCSW, shares:

“Food is not a cure for depression, anxiety, or other mental health conditions. However, nutrition can support the body systems that influence mental wellness.”

The good news is that you do not need a perfect diet to see benefits. Small, healthy changes practiced over time can support better energy, improved focus, healthier habits, and overall well-being.

At Gloria Gates CARE, our team works together to support the whole person. Whether you’re looking to improve your nutrition, manage a health condition, or support your mental health, we’re here to help.

Because when it comes to your health, progress—not perfection—is what matters most.