Why Gut Health Matters More Than You Think

Mar 30, 2026

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By Christopher Morrissey, DO, FACOS, General Surgeon, William Newton Hospital

When most people think about their health, they focus on the heart, lungs, or maybe their weight. But one of the most important—and often overlooked—parts of your body is your gut.

Your gut, also known as your digestive system, does much more than just process food. It plays a critical role in your immune system and overall well-being. In fact, nearly 70 percent of your immune system is located in your gut. That means the health of your digestive tract directly impacts your body’s ability to fight off infections and stay healthy.

Inside your gut lives a complex community of bacteria, often referred to as the “gut microbiome.” While the word bacteria may sound concerning, many of these organisms are actually beneficial. They help break down food, produce essential vitamins, and protect against harmful pathogens. When this system is balanced, your body functions efficiently. When it’s not, you may experience issues such as bloating, fatigue, frequent illness, or even changes in mood.

Research has also shown a strong connection between gut health and other aspects of wellness, including mental health. This is sometimes called the “gut-brain connection.” An unhealthy gut can contribute to inflammation and may play a role in conditions like anxiety and depression. So how can you improve your gut health?

Start with your diet. Foods rich in fiber—such as fruits, vegetables, whole grains, and legumes—help feed the good bacteria in your gut. Fermented foods like yogurt, kefir, sauerkraut, and kimchi can also support a healthy microbiome. Staying hydrated, getting regular exercise, and managing stress are equally important.

On the other hand, diets high in processed foods, sugar, and excessive antibiotics can disrupt the balance of gut bacteria.

Taking care of your gut isn’t just about avoiding stomach problems—it’s about supporting your entire body. By making small, consistent changes, you can strengthen your immune system, improve your energy levels, and enhance your overall health.

Your gut does more than you realize—start taking care of it today.

Lastly, this is also a public service announcement to make sure you practice good hand hygiene and try to alleviate your issues at home with what you have. But if you are at all worried, the best thing to do is to get evaluated if you feel your life is in danger.

Editorial Notes: This article was submitted for the "Weekend Check-Up," a regular health column in the Cowley CourierTraveler penned by employees and friends of William Newton Hospital. Christopher Morrissey, DO, FACOS, a general surgeon at William Newton Hospital, is also the medical director for the William Newton Wound Healing Center and the medical director for Rejuuv Medical Spa. He also is an instructor for the Kansas College of Osteopathic Medicine in Wichita, KS, and is the owner and certified personal trainer for M9 Maximum Performance.