A new developing science states: The connection between the mind and gut is bidirectional; the gut talks to the brain and the brain talks to the gut. Major health problems can appear when this system is disturbed; One way to minimize this is to keep your microbial “self” happy and working properly. The connection can affect mood and overall health.
HOW TO FEED YOUR GUT MICROBES
Try to maintain a variety of diverse gut microbes by maximizing your consumption of naturally fermented food, probiotics and prebiotics(these foods “feed” your own intestinal microbes.)
For reduction of gut inflammation, try these:
Cut down on animal fat in your diet.
Avoid when possible, mass-produced ultra-processed foods.
Reduce stress and practice mindfulness of what you’re eating.
Avoid eating when you are stressed, angry or sad.
Enjoy foods and eat with family and friends.
Listen to your gut feelings and signals.

Source:
The Mind-Gut Connection: How the Hidden Conversation Within Our Bodies Impacts Our Mood. Emeran Mayer, M.D. 2016