Small Intestinal Bacterial Overgrowth (SIBO): What You Need to Know

Small Intestinal Bacterial Overgrowth, often called SIBO, happens when too many bacteria grow in the small intestine. Normally, the small intestine contains fewer bacteria than the large intestine. When this balance is disrupted, bacteria can ferment food before it is properly digested, leading to uncomfortable symptoms and nutrient absorption problems.

Why is SIBO Important for Gut Health?

SIBO can affect your gut health in several ways. It often causes symptoms like bloating, gas, abdominal pain, diarrhea or constipation. Over time, SIBO may lead to nutrient deficiencies, especially in vitamins like B12, and can impact your overall well-being. Addressing SIBO is important because it can be linked to other gut conditions, such as irritable bowel syndrome (IBS) and food intolerances.

What Causes SIBO?

Several factors can contribute to SIBO. These include slowed gut movement, structural changes in the intestines, certain medications and chronic conditions that affect digestion. Sometimes, a previous infection or surgery can also increase the risk. Understanding the underlying cause can help guide treatment and prevention.

Common Symptoms of SIBO

Bloating and abdominal distension
Excessive gas and belching
Abdominal pain or discomfort
Diarrhea or constipation
Unintentional weight loss
Fatigue and weakness
Nutrient deficiencies, especially vitamin B12

How Diet and Nutrition Affect SIBO

Diet plays a key role in managing SIBO. Certain carbohydrates, especially those that are poorly absorbed, can feed bacteria in the small intestine and worsen symptoms. Many people with SIBO benefit from a low FODMAP diet or other tailored eating plans that reduce fermentable foods. Adjusting your diet can help control symptoms and support recovery, but it is important to focus on balanced nutrition to avoid deficiencies.

What Can You Do If You Suspect SIBO?

If you recognize symptoms of SIBO, consider keeping a food and symptom diary. This can help identify patterns and triggers. Consulting a healthcare professional is important for proper diagnosis and treatment. Treatment often includes dietary changes, targeted antibiotics or herbal therapies, and strategies to support healthy gut movement.

Explore More About Gut Health

Understanding SIBO is just one step toward better gut health. On our website, you will find detailed information about the effects of different foods, such as fruits, vegetables, grains and more, on your digestive system. Explore topics like FODMAPs, histamine, gluten, fiber, prebiotics and food allergies to gain more control over your gut health and well-being.

Summary

SIBO is an overgrowth of bacteria in the small intestine that disrupts digestion and nutrient absorption.
Common symptoms include bloating, gas, abdominal pain, diarrhea or constipation and nutrient deficiencies.
Dietary changes, especially reducing fermentable carbohydrates, can help manage symptoms.
Proper diagnosis and treatment are important for long-term gut health.
Find more information on our website about foods and strategies for a healthy gut.