SIBO - The Real Reason for Belching, Abdominal Bloating, and Post-Meal Discomfort

1. Recurring Post-Meal Discomfort: What's the Real Cause?

Hello. Do you often experience these symptoms after eating?

Your stomach feels bloated, you have an uncomfortable, blocked sensation, and you burp constantly...

You haven't overeaten, yet you always feel uncomfortable after a meal.

However, at the hospital, you repeatedly hear that your "stomach and large intestine are fine."

Ultimately, it's not uncommon to be told it's just 'constitutionally weak digestion.'

But in such cases, is the stomach really the problem?

Today, I want to talk about a phenomenon hidden behind these symptoms: 'fermentation occurring in the small intestine.' Its medical name is SIBO, or Small Intestinal Bacterial Overgrowth.

2. 'Rapid Fermentation' Happening in the Small Intestine

When we think of fermentation, we usually imagine kimchi or yogurt. You probably know that fermentation is good for the body. However, it's a problem, and by no means a good thing, if that fermentation is happening in your small intestine, right after a meal.

Normally, when we eat, food is partially digested in the stomach, mostly absorbed in the small intestine, and the rest goes to the large intestine for slow fermentation. That's the normal digestive sequence.

However, when there's an abnormal increase of bacteria in the small intestine – which is SIBO – as soon as food reaches the small intestine, these bacteria immediately start fermenting it.

Gas quickly forms, the abdomen rapidly distends, you feel fullness and a blocked sensation in the pit of your stomach, and burping constantly recurs. Depending on the person, constipation may worsen, or conversely, diarrhea may become more frequent.

If these symptoms repeatedly appear within 30 minutes after a meal, you should consider it not just a simple stomach problem, but more likely a fermentation issue in the small intestine, i.e., SIBO.

3. The Emergence of SIBO in Western Medicine

This concept hasn't been widely known for very long. In the early 2000s, a research team led by Dr. Mark Pimentel, a U.S. gut specialist, analyzed patients who consistently complained of abdominal bloating, diarrhea, burping, and post-meal discomfort, despite having no abnormalities on digestive tests.

They discovered that a significant number of these patients had an overgrowth of bacteria in their small intestine. Until then, the small intestine was thought to be a nearly sterile organ. However, since this research, it's increasingly recognized that many people who 'digest well but always feel bloated and uncomfortable' actually have an imbalanced gut bacterial distribution.

4. Traditional Korean Medicine: A Long-Standing Understanding

However, Traditional Korean Medicine has been describing this condition in its own terms for a much longer time. After meals, the abdomen feels like it's about to burst, burping is constant, there's a stifling sensation below the chest, and one feels even more tired and drowsy after eating... Such conditions have been addressed in Traditional Korean Medicine through concepts like spleen-stomach deficiency-cold (*Biwiheohan*), Qi stagnation affecting the stomach (*Gichebeomwi*), and accumulation of phlegm-dampness (*Damsupjungjeo*).

It's not merely a weak digestive function, but a state where the transportation and transformation function (*Yunhwa*) of the Middle Burner (*Jungcho*) itself has collapsed. This means food remains stagnant, undissipated, and improperly broken down, accumulating within the body. Ultimately, this leads to Qi stagnation (*Giun ulche*), gas accumulation, rebellious Qi causing burping (*Yeoksang*), and irregular bowel movements.

5. Traditional Korean Medicine Treatment: Not About Avoidance, But Restoration

In such cases, Traditional Korean Medicine uses prescriptions that warm the spleen and stomach (*Biwi*), circulate Qi, and resolve stagnant phlegm-dampness (*Damsup*). For instance, for individuals experiencing internal coldness, loose stools, and persistent post-meal bloating, a modified *Ijung-tang* (*Li Zhong Tang*) prescription is used to dispel cold from the Middle Burner (*Jungcho*) and restore its transportation and transformation function (*Yunhwa*).

For those with burping as the main symptom and a stifling sensation in the chest and abdomen, prescriptions like *Banha-hubak-tang* (*Ban Xia Hou Po Tang*) and *Hyangsa-yookgunja-tang* (*Xiang Sha Liu Jun Zi Tang*) regulate Qi circulation (*Gi-sun*) to suppress burping and disperse gas. Furthermore, for individuals with a thick white tongue coating, lack of appetite, and a strong sensation of heaviness, prescriptions from the *Pyungwi-san* (*Ping Wei San*) and *Ijin-tang* (*Er Chen Tang*) families are used to eliminate phlegm-dampness (*Damsup*) and rebalance the gut environment.

6. Dietary Adjustment: Even Healthy Foods Have Their Timing

Acupuncture treatment is also used concurrently. By harmonizing the spleen and stomach (*Biwi*) through points like *Joksamni* (ST36), *Jungwan* (CV12), and *Naegwan* (PC6), and regulating Qi circulation (*Gi-sun*) through *Taechung* (LR3), *Gihae* (CV6), and *Chunchu* (ST25), symptoms such as abdominal bloating, burping, and constipation are also managed. And an important aspect to emphasize is diet.

Even foods known to be healthy, such as brown rice, multi-grain cereals, and raw vegetables, can actually produce more gas and promote fermentation when gut function is weakened. Therefore, in the early stages of treatment, we recommend a low-fermentation diet consisting mainly of easily digestible and gentle foods like white rice porridge, cooked vegetables, pumpkin, or radish. Dietary fiber and multi-grain cereals are slowly reintroduced only after symptoms have subsided.

7. This Is a Fermentation Problem, Not Just a Digestion Problem

In summary, SIBO isn't just a condition caused by an excess of bacteria in the gut; it's a state where food 'remains improperly processed and putrefies' within the intestines. And this cannot be resolved simply by using antibiotics.

Traditional Korean Medicine has long addressed this condition as spleen-stomach weakness (*Biwi-heoyak*), Qi stagnation (*Giche*), and phlegm accumulation (*Dam-ul*), with its core principle being 'functional restoration.' It's not a problem solved by avoiding certain foods, but rather by restoring your gut to a state where it can once again properly process those foods. That is the true end of treatment.

If you suffer more after meals, and discomfort persists even when stomach tests are normal, it could be a sign that fermentation is occurring in your small intestine. Traditional Korean Medicine approaches such conditions with a deeper and more long-term perspective.

I hope the information shared today offers a guiding direction to those who have long suffered from similar symptoms. Thank you.

#SIBO #AbdominalBloating #PostMealDiscomfort