Dr Rick Pescatore, MD: The Truth About Gut Health Nobody Talks About
Normal labs. Normal CT scan. Abnormal suffering.
That gap is where millions of people live.
Chronic nausea. Bloating. Constipation. Diarrhea. Abdominal pain. Fatigue. Brain fog. And after test after test comes back “normal,” they’re sometimes told the problem is just anxiety. But what if we’ve been looking at the gut and the brain as separate systems when they’re actually communicating constantly?
In my latest episode of The Gaslit Truth Podcast, I sit down with Dr. Rick Pescatore—ER physician, former state chief physician and White House task force advisor, Editor-in-Chief of Emergency Medicine News, and founder of Belly MD—to explore the gut-brain axis and the connection between digestive health, the nervous system, neurotransmitters, and mental health.
The gut has its own nervous system, called the enteric nervous system, and it is in constant communication with the brain. The vagus nerve acts as a two-way communication pathway between the brain and the gut, helping connect stress, inflammation, digestion, and nervous system signaling. This matters enormously in mental health.
As clinicians, we cannot assume that every physical symptom is psychological simply because standard testing doesn't identify a clear structural problem. GI symptoms can intersect with nervous system function, neurotransmitters, nutrient status, inflammation, stress physiology, and psychiatric medications.
And guess what? SSRIs and SNRIs can directly influence the gut, including why some people experience significant gastrointestinal symptoms when reducing or discontinuing psychiatric medications. We explore GLP-1 medications and their effects on digestion, including nausea and changes in gut motility, as well as SIBO and why these effects can be dramatically different from one person to another.
One of the biggest surprises in this conversation is thiamine (vitamin B1).
Functional B1 deficiency can present with symptoms such as fatigue, nausea, vomiting, low mood, tingling, and pain. And because routine laboratory testing doesn't always tell the whole story of what is happening at the cellular level, nutritional and mitochondrial considerations can be overlooked. This is exactly why I believe mental health clinicians need a broader understanding of the gut-brain connection. When someone presents with anxiety, depression, panic, brain fog, or other psychological symptoms alongside significant GI complaints, there may be important physiological pieces of the puzzle that deserve consideration.
This doesn't mean every mental health symptom is caused by the gut. It means the gut belongs in the mental health conversation.
When we reduce complex human suffering to a normal CT scan or a normal blood panel, we will miss the person standing right in front of us.
Normal testing does not automatically equal normal functioning. And it certainly doesn't mean someone's suffering isn't real.
Tune in now to my conversation with Dr. Rick Pescatore on The Gaslit Truth Podcast and share it with someone who has been told their symptoms are “just anxiety.”
