7 Clear Signs You Have an Unhealthy Gut
You need the right balance of bacteria to maintain gut health—here’s how to know when your microbiome is out of whack.
The mighty health benefits of the bacteria in your gut
Your gastrointestinal tract is lined with microbes collectively called the microbiome, which includes bacteria, fungi, and even viruses. Though it sounds gross and even unhealthy, gut bacteria perform many important functions in the body, including aiding the immune system, producing the feel-good brain chemical serotonin, making energy available to the body from the food we eat, and disposing of foreign substances and toxins, according to Lisa Dreher, RDN, a registered dietitian at the UltraWellness Center in Lenox, MA. Though all of us have a mixture of good and bad bacteria, sometimes the bad guys get the upper hand, causing dysbiosis, or an imbalance in gut bacteria, which can play a role in a number of health conditions. So, how do you know when you have an imbalance? These clear signs point to a dysbiosis that has the potential to make you sick.
Your stomach doesn’t feel right
Diarrhea, constipation, bloating, nausea, and heartburn are classic symptoms of problems with gut health. “Gastrointestinal discomfort—especially after eating carbohydrate-rich meals—can be the result of poor digestion and absorption of carbohydrates,” Dreher says. Reflux, inflammatory bowel disease, irritable bowel syndrome, and colitis have all been linked to an imbalance in the microbiome. Here’s how to tell if your belly bloat is something serious.
You’re hankering for certain foods
iStock/Vincent Shane Hansen
Craving foods, especially sweets and sugar, can mean you have an imbalance of gut bacteria. “If there’s an overgrowth of yeast in the system, which might happen after a course or two of antibiotics where you wipe out all the good bacteria, then that overgrowth of yeast can actually cause you to crave more sugar,” Dreher says. Address your gut health; these are the best probiotic foods for your gut (that aren’t yogurt).
The scale is going up or down
Certain types of gut bacteria can cause either weight loss or weight gain, especially when they colonize in the small intestine, a condition called SIBO (short, for small intestine bacterial overgrowth). Too many microbes in the small intestines can mess with gut health by interfering with absorption of vitamins, minerals, and fat. “If you’re not able to digest and absorb fat normally, you can actually see some weight loss,” Dreher says. Other types of bacteria have been linked to weight gain, as certain microbes are able to harvest more calories from foods than others. Severe IBS-C made this woman’s belly look “five months pregnant.”
You’re anxious or feeling blue
Roughly 80 to 90 percent of serotonin, a neurotransmitter that affects mood, social behavior, sleep, appetite, memory, and even libido, is produced in the gut. When less serotonin is produced, it can negatively impact mood. “Gut imbalances of the microbiome can trigger depressive symptoms,” says Todd LePine, MD, a physician at the UltraWellness Center in Lenox, MA. Here’s how to spot 13 signs your microbiome could be in trouble.
You’re not sleeping well
Not having enough serotonin can lead to bouts of insomnia or difficulty getting to sleep, according to Dreher. And according to Dr. LePine, chronic fatigue and symptoms of fibromyalgia can be tied to gut bacteria imbalances as well. Learn more about the 7 conditions you might be mistaking for fibromyalgia.
Your skin is acting up
Skin rashes and eczema, a chronic condition characterized by inflamed and itchy red blotches on the skin, can be a sign of poor gut health because they develop when there is an imbalance in gut bacteria, according to Victoria Maizes, MD, executive director of the Arizona Center for Integrative Medicine and professor of medicine, family medicine, and public health at the University of Arizona in Tucson, AZ.
You have an autoimmune condition
Imbalance in the microbiome can cause more than just GI symptoms. According to Dr. LePine, diseases affecting the immune system, known as autoimmune diseases, can also indicate an imbalance. “Rheumatoid arthritis and multiple sclerosis are tied in with imbalances in gut bacteria,” he says. Find out how a healthy gut microbiome could help you live longer.
How to build a healthier gut
Eating right is the first step in improving gut health. In fact, the types of foods we eat can change our microbiome in as little as 24 hours, according to Ali Keshavarzian, MD, professor of medicine and director of the Division of Digestive Diseases and Nutrition at Rush University Medical Center in Chicago, IL. To feed your good bacteria and starve the less desirable bacteria, swap out processed foods, breads, and pastas for plants, fruits, seeds, and nuts. And consider adding fermented foods into your diet, including yogurt, kombucha, kimchi, and kefir, which naturally contain probiotics, or healthy bacteria. It’s also a great idea to fill up on prebiotic foods, which actually feed the good bacteria. Try leeks, asparagus, onions, garlic, chicory, oats, soybeans, and Jerusalem artichokes. Lastly, avoid unnecessary use of antibiotics. “Any time you take an antibiotic, you’re going to knock out a lot of the healthy bacteria,” says Dr. Maizes. If you must take antibiotics, consider taking a probiotic supplement to recreate a healthy bacterial community in your gut. Learn about 21 more health secrets your gut is trying to tell you.
- Cancer Research, “The Host Microbiome Regulates and Maintains Human Health: A Primer and Perspective for Non-Microbiologists”
Lisa Dreher, RDN, a registered dietitian at the UltraWellness Center in Lenox, MA
Centers for Disease Control and Prevention, “What is inflammatory bowel disease (IBD)?”
Todd LePine, MD, a physician at the UltraWellness Center in Lenox, MA
Victoria Maizes, MD, executive director of the Arizona Center for Integrative Medicine and professor of medicine, family medicine, and public health at the University of Arizona in Tucson, AZ
Ali Keshavarzian, MD, professor of medicine and director of the Division of Digestive Diseases and Nutrition at Rush University Medical Center in Chicago, IL
National Center for Complementary and Integrative Health, “Probiotics: In Depth”
Current Developments in Nutrition, “Health Effects and Sources of Prebiotic Dietary Fiber”