Digesting the Gut-Brain Connection

as new research surfaces regarding the relationship between the brain and the gut, it becomes clearer than ever just how connected the two truly are. your gut and brain are in constant communication with one another, influencing each other's functions in countless ways. 

this is known as the gut-brain connection or the gut-brain axis. 

the gut-brain axis is the network in which your gut and brain connect and it has 3 main parts:

the vagus nerve.

neurotransmitters.

gut microbiome. 

the vagus nerve is the largest cranial nerve in the whole body, stretching from the brainstem to the abdomen. this is the main pathway your gut and brain use to communicate with each other. 

neurotransmitters are chemicals that transmit messages on a cellular level. both the gut and the brain produce neurotransmitters such as serotonin and dopamine, which affect mood and digestion. 

the gut microbiome is essentially an ecosystem of microbes, bacteria, fungi, etc. residing within your gut. these microorganisms have many functions and responsibilities such as digesting your food, absorbing and synthesizing nutrients, regulating your mood and influencing brain function and behaviors. 

how the gut affects the brain 

mood and mental health: your gut produces about 90% of your body's serotonin, the happiness chemical. an imbalance in gut bacteria can lead to lower serotonin levels, which affects your mood. so if you take care of your gut, you are supporting your mental health and your body’s function of creating happiness chemicals within you, too!

stress response: when you're stressed, your brain sends signals to the gut that can cause digestive issues like stomach aches or changes in bowel habits. conversely, a troubled gut can send distress signals to the brain, potentially increasing feelings of anxiety and stress.

how the brain affects the gut

digestion: the brain can impact gut function throughout your body’s nervous system, which controls involuntary actions such as digestion. when you're in a relaxed state, your "rest and digest" system is active, supporting and promoting healthy digestion. on the other hand, if you are in a state of stress or anxiety, these feelings can trigger your "fight or flight" response, which can slow or disrupt digestion.

emotions triggering cravings: your mood and mental state can influence the choices you make in the kitchen. for example, stress or sadness may lead you to crave comfort foods such as excessive sweets or ultra-processed foods. they may not always be gut-friendly which, in turn, can create a cycle of poor diet or digestive discomfort.

understanding and nurturing your gut-brain connection can lead to healthy, regular digestive health, better food choices, improved mental well-being, and so much more! 

love your gut.. 

take care of your gut, in all the ways. 

throughout the week, i will be talking about specific ways to honor the gut-brain connection, so keep your eyes peeled!