Holistic Gut Health: The Link Between Microbiome, Mood and Immunity

A healthy gut is an essential pillar for living well. But sometimes, whether it’s due to your diet or other lifestyle factors, your gut microbiome changes, and it may affect more than just your digestive health.

Keep reading to learn more about your gut health and the link between a healthy microbiome, mood and immunity, as well as ways to boost your gut health.

What Is Gut Health?

Gut health refers to the function of your gastrointestinal system, which includes the stomach, small and large intestines and the colon, and its ability to digest food and absorb nutrients. More specifically, gut health refers to the trillions of microorganisms that live in the intestines, known as the microbiome. Your microbiome includes bacteria, viruses, fungi and archaea, all of which play a vital role in regulating your gut health, immunity, metabolism and digestion.

The microorganisms living in your gut have a symbiotic relationship with you, meaning you benefit from having them and they benefit by living in your gut. By hosting these microorganisms, you’re protected against harmful ones that could cause illnesses, and they benefit by having a place to live and thrive. This relationship is often illustrated as a garden with the microorganisms representing healthy soil. When the soil is good, the entire garden thrives. However, if the soil becomes polluted, your microbiome can become disrupted.

Signs of an Unhealthy Gut Microbiome

Sometimes, your gut microbiome can become imbalanced, which is known as dysbiosis. Over time, this can lead to various issues like bloating, constipation, diarrhea and heartburn. Other signs of an unhealthy gut microbiome include:

• Headaches
• Joint pain
• Mental and cognitive effects, like brain fog, difficulty concentrating, anxiety and depression
• Skin problems, like acne, eczema, rosacea or psoriasis
• Unexplained fatigue
• Unexplained weight loss or gain

If you or a loved one is experiencing any of these symptoms and believes it may be due to an unhealthy gut microbiome, talk with your doctor for prompt care and next steps.

The Gut-Brain Axis Explained

The National Library of Medicine defines the gut-brain axis as bidirectional communication between your central nervous system, microbiome and vagus nerve. This connection plays a vital role in maintaining your mental well-being, physical health and immune function. Essentially, your brain and gut talk to each other and communicate necessary information to help you thrive.

How Gut Bacteria Influence Mood and Mental Health

When your gut microbiome is healthy, there is a direct correlation to your mood and mental health. This is because certain gut bacteria produce or influence the production of certain neurotransmitters, like serotonin, dopamine and gamma-aminobutyric acid (GABA), which play a vital role in mood regulation and emotional behavior. And according to the National Library of Medicine, approximately 95% of the body’s serotonin, the neurotransmitter responsible for mood and happiness, is produced in the gut.

So it’s safe to say that there’s a direct correlation between a diverse, healthy gut microbiome and positive mental health. On the other hand, an unhealthy microbiome is linked with depression, anxiety and other stress-related conditions.

The Gut Microbiome’s Role in Immune Function

Did you know that 70 to 80% of your body’s immune cells reside in your gut? Because of this, there’s a correlation between your gut microbiome, the intestinal epithelial layer, the local mucosal immune system and your systemic immunity.

Essentially, your gut microbiome trains your immune system to distinguish between harmful pathogens and microbes and healthy ones, effectively preventing immune responses that may lead to autoimmune or inflammatory diseases. A healthy microbiome supports the production of anti-inflammatory immune responses, such as regulatory T cells, which help maintain immune balance and prevent excessive inflammation.

Lifestyle Factors That Affect Gut Health

When it comes to supporting your gut health, there are several lifestyle factors to consider, including your diet, physical activity and sleep. But the most impactful lifestyle factor for boosting your gut health is your diet. It’s best to focus on a diet rich in fiber, fruits, vegetables and whole grains because these foods boost the production of healthy bacteria and cultivate a diverse gut microbiome.

Foods That Support a Healthy Microbiome

To support a healthy gut microbiome, focus on the following foods:

• Artichokes
• Asparagus
• Avocados
• Brown rice
• Flaxseeds
• Olive oil
• Onions
• Prebiotic foods (leafy greens, oats, beans, lentils, apples, bananas)
• Probiotic foods (yogurt, kefir, sauerkraut, kimchi, miso)
• Quinoa

If you want further assistance choosing the right foods or would like to have further conversations, we offer various wellness care services to meet your needs.

Supporting a Healthier Gut for a Happier You

Understanding the ins and outs of your gut health benefits not only your digestive health but also your mental and immune health. And at AdventHealth, we’re dedicated to helping you support a healthier gut so you can live well.

Learn more about our digestive care services or our primary care services and how we can walk with you on your journey to whole health.