When we talk about lifestyle interventions for mental health challenges, a healthy diet almost always comes up. What you put into your body has a direct impact on how you feel, not just physically but also mentally.
A growing body of research highlights just how important — and direct — the link is between your gut and your brain. We want to give you an overview of what researchers know now.
Meet your enteric nervous system
Your gut isn’t just your stomach. It encompasses the entire system that food goes through from the moment it enters your body via your mouth to when it leaves out the other side. Scientists call this your gastrointestinal (GI) tract.
Embedded within the lining of your GI tract, you have your enteric nervous system (ENS). It contains about 500 nerve cells. That makes the ENS the most complex neural network in your body apart from your brain.
So it’s not totally surprising that there’s a connection between functional bowel problems and mental health problems. People with irritable bowel syndrome (IBS) have triple the risk of anxiety and depression, for example.
For a long time, the medical field thought the brain contributed to digestive issues. But now they think the reverse might also be true. Problems in your gut can send signals to your brain that affect your mood.
Your gut and your brain: A two-way street
Your gut and your brain communicate, and you experience the results of this on a daily basis. When you eat enough, signals go to your brain, and your brain tells you that you’re full. But that gut-brain connection extends well beyond digestion.
Researchers have linked the gut-brain axis to impacts on your:
- Mood
- Behavior
- Stress levels
- Cognitive function
In other words, your gut plays a role in not just how you feel physically, but how you feel mentally.
Specifically, when your gut isn’t functioning like it should, it impacts how your body produces certain chemicals. You might make less serotonin, which helps with regulating both your digestion and your mood. Or you might produce less dopamine, which impacts reward and motivation and how the muscles in your GI tract work. Together, dopamine and serotonin often get called happy chemicals. Less of them can cause mental health challenges or make them worse.
Nurturing your brain-gut axis to nurture your mental health
So, what does all of this mean for you? For starters, it means you should double down on your efforts to eat a healthy, balanced diet. If you’re not feeling well mentally, being mindful about what you eat can help.
Specifically, you can choose foods and drinks that support a healthy gut microbiome. A handful of studies have linked more probiotic intake to reduced symptoms of anxiety and depression. Good options to add here include:
- Colorful fruits and veggies (they contain polyphenols, which act as prebiotics)
- Fatty fish
- Fermented foods like yogurt with live cultures, sauerkraut, and kimchi
- Fermented drinks like kombucha
- Foods with a lot of fiber
Overall, you want to aim for a diet that primarily consists of whole foods (i.e., food that’s not processed) and contains a lot of plants. This works to minimize inflammation in your gut, which helps it function like it should.
What you eat is a big piece of the mental wellness puzzle. But it’s only one component. If modifying your diet doesn’t help you feel better, come talk with our team. Our therapists offer support for mental health challenges including anxiety and depression.
Call our intake coordinator to explore what we can do for you.
