Leaky gut syndrome - symptoms, causes, treatment and diet
Kacper Nowak
2026-03-23
6 min. read
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Although the term 'leaky gut syndrome' may sound quite abstract and may seem laughable or unbelievable to some people, the condition is really real and can lead to significant consequences. All diseases have their roots in the gut, and one of their common factors is often what is known as leaky gut. Can a diet be effective in controlling gut permeability? What symptoms can it cause and what treatment options are available? What is it and why does it occur?
Leaky gut syndrome, also colloquially termed 'holey'
Leaky gut syndrome (LGS) is a medical term describing a condition where the intestinal barrier is compromised. While colloquial terms like 'leaky gut' or 'holey' are used, this does not mean the condition is visibly apparent during a colonoscopy. In reality, localized tissue disruptions are too minute to be detected in macroscopic imaging. Despite superficial similarities to a healthy gut, there are key differences. A healthy intestine has epithelial cells tightly bound by tight junctions, sealing the intestinal mucosa barrier. This allows proper nutrient absorption while bacteria and antigens remain in the intestinal lumen and are excreted. However, these junctions can become loosened due to various factors, allowing pathogens and larger food particles to enter the bloodstream. The immune system recognizes these as invaders and produces antibodies, leading to chronic inflammation and potentially autoimmune diseases. Until the intestinal barrier is restored, this process continues, exacerbating symptoms over time.
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