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Struggling with Digestion? Here’s What SIBO Could Mean for You

Sep 18, 2025

1 min read

Written by Fluent Team

Medically reviewed by

Dr Amey Sonavane

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Struggling with Digestion? Here’s What SIBO Could Mean for You

Small Intestinal Bacterial Overgrowth (SIBO) is a condition where bacteria overpopulate the small intestine, causing digestive issues and discomfort. While the condition is becoming more recognised, it remains a silent struggle for many, especially young people. Fast-paced lifestyles, diet habits, and constant stress can contribute significantly to the development of SIBO.

Understanding the causes, symptoms, risk factors, and prevention strategies can help you manage the condition and improve overall gut health.

Did You Know?

As SIBO impacts nutrient absorption, it can lead to unexplained tiredness or low energy.

What is Small Intestinal Bacterial Overgrowth (SIBO)?

Small Intestinal Bacterial Overgrowth (SIBO) occurs when there's an abnormal increase in the number of bacteria in the small intestine. Normally, the small intestine contains fewer bacteria than the large intestine, but when these bacteria grow out of control, they can disrupt digestion, causing a variety of digestive symptoms. SIBO leads to bloating, gas, diarrhoea, and malabsorption of nutrients, affecting daily health. For younger generations, who are already dealing with busy schedules and fast food culture, this condition can significantly impact daily life and well-being.

Symptoms of SIBO

SIBO symptoms can be tricky, often overlapping with otherdigestive disorders. Some common symptoms and signs include:

  • Bloating and abdominal distension:Uncomfortable swelling or a feeling of fullness

  • Excessive gas and burping:Overgrowth of bacteria causes fermentation, producing more gas than usual.

  • Diarrhoea or constipation:SIBO can lead to irregular bowel movements, causing either diarrhoea or constipation. Flatus can be foul-smelling in patients with SIBO.

  • Fatigue:As SIBO impacts nutrient absorption, it can lead to unexplained tiredness or low energy.

  • Unexplained weight loss:The condition can lead to malnutrition as the small intestine struggles to absorb nutrients properly.

  • Malnutrition:With reduced absorption of nutrients like B12 and iron, SIBO can result in deficiencies, affecting overall health.

  • Anaemia:B12 deficiencyanaemia is common in patients with SIBO.

In today's fast-paced world, digestive issues like SIBO often get pushed aside as stress and poor eating habits take precedence. It's not uncommon for young people to overlook symptoms, thinking they're just part of a busy lifestyle. However, recognising these symptoms early on is key to preventing long-term health issues.

Quick Explainer

Normally, the small intestine contains fewer bacteria than the large intestine, but when these bacteria grow out of control, they can disrupt digestion, causing a variety of digestive symptoms.

Causes of SIBO

SIBO occurs due to several factors, many of which are particularly relevant to younger generations:

1. Poor diet choices

The convenience of fast food, delivery apps, and heavily processed foods may contribute to SIBO. These foods disruptgut health and foster an environment for bacterial overgrowth in the small intestine.

2. Stress

Millennials and Gen Z face increasing stress with academic pressure, career-building, and maintaining social lives. Chronic stress can impair gut motility, a key factor in developing SIBO.

3. Medications

The overuse of certain types of medications can disrupt gut flora and contribute to SIBO. Additionally, medicines for treating acid reflux may hinder the natural balance of gut bacteria.

4. Poor sleep

Inadequate sleep, often a by product of busy lives and high screen time, can impair immune function and disrupt gut health, making young adults more susceptible to conditions like SIBO.

5. Inactive lifestyle

Spending hours sitting at desks or in front of screens can slow down digestion and make the small intestine more prone to bacterial overgrowth.

6. Internal issues

Intestinal dysmotility, altered intestinal anatomy, and immune deficiencies are other causes of SIBO.

What could be putting me at risk?

The risk factors for SIBO often intersect with lifestyle choices, particularly in younger age groups:

Diet: Diets high in processed foods, sugars, and fats can contribute to bacterial imbalance in the gut.

Chronic stress: Increasedstress and pressure, both from school and work, can lead to digestive issues and bacterial overgrowth.

Medications: Overuse of certain types of medications that impact gut function can set the stage for SIBO.

Lack of physical activity: A sedentary lifestyle can slow digestion, allowing bacteria to accumulate in the small intestine.

Sleep deprivation: Young people often sacrifice sleep for productivity, which weakens theimmune system and disrupts digestion.

Natural ways to prevent SIBO

While it’s not always possible to prevent SIBO, making simple lifestyle changes can help reduce the risk, especially for younger generations:

Eat a balanced diet: Avoiding too much processed food and focusing on a balanced, fibre-rich diet can keep gut bacteria healthy. A low FODMAP diet might also help in reducing symptoms for some people with SIBO.

Manage stress: Incorporating mindfulness techniques, exercise, and relaxation practices into daily routines can help reduce stress levels, improving both mental and digestive health.

Limit use of medications: Only take medications when necessary and under the guidance of a healthcare provider.

Exercise regularly: Regular physical activity, even just walking or stretching, promotes gut motility, helping prevent bacterial buildup.

Get enough sleep: Prioritisingquality sleep helps support immune function and digestive health, reducing the risk of SIBO.

For many young individuals, taking proactive steps toward gut health involves balancing busy careers, social lives, and personal health. Prioritising digestive well-being is an important step towards a healthier lifestyle.

One step at a time

SIBO is a condition that can significantly impact gut health, especially for younger generations who face high levels of stress, poor dietary habits, and an increasingly sedentary lifestyle. By understanding its causes, symptoms, and prevention strategies, you can take steps to manage SIBO effectively and improve your overall digestive health. Making small, mindful changes in diet, exercise, and stress managementcan go a long way in reducing the risk of SIBO and improving your quality of life.

Frequently Asked Questions

1. Can SIBO be cured completely?

SIBO can often be treated with medications and dietary changes, but it may recur, especially if the underlying causes aren’t addressed. Ongoing management is often necessary.

2. Is SIBO contagious?

No, SIBO is not contagious. It’s caused by an imbalance of bacteria in the small intestine and is not spread from person to person.

3. Can diet alone help in managing SIBO?

Dietary changes, like following a low FODMAP diet, can help alleviate symptoms but are usually not enough to cure SIBO. Doctor-prescribed medications are often required.

4. How can I reduce SIBO symptoms?

SIBO symptoms can be reduced through medications, dietary adjustments, probiotics, and stress management techniques. A holistic approach works best.

5. What kills SIBO naturally?

Natural treatments like peppermint oil and herbal medicines can help alleviate symptoms, but they are not a cure. It’s important to consult a healthcare provider for treatment.

6. Are bananas bad for SIBO?

Bananas are a low-FODMAP food in moderate amounts and are usually well-tolerated by people with SIBO. However, overripe bananas may be high in FODMAPs and trigger symptoms.

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