The intestines are not only a site for nutrient absorption but also a barrier against foreign pathogens and toxins. Normally, the cells of the intestinal mucosa are tightly linked, forming a protective net that ensures large undigested food molecules and toxins cannot freely cross into the bloodstream. Nutrients can only be transported into the blood through specific mechanisms after food is broken down.

The barrier function of the intestinal mucosa can be compared to that of human skin, as both are crucial in blocking external assaults and maintaining internal stability. However, various factors such as infections, inflammation, external drugs or toxins, and poor dietary habits can damage these tight junctions between the mucosal cells, creating gaps or causing changes in osmotic pressure. When this protective net weakens, large undigested molecules, especially proteins, may cross the intestinal mucosa into the blood or lymphatic fluid, leading to leaky gut syndrome. This condition not only increases the burden on the immune system but may also trigger autoimmune reactions that jeopardize the health of vital organs like the liver and pancreas.

Over 70% of the body’s immune cells are concentrated in the intestines, making it the largest immune organ in the body. The health of the intestinal mucosa directly affects its barrier function and the overall efficacy of the immune system. Maintaining the health of the intestinal mucosa involves focusing on diet quality, consuming probiotics and prebiotics to maintain a healthy microbial balance, avoiding unnecessary antibiotics, and protecting and strengthening this barrier through a healthy lifestyle.

In summary, the integrity of the intestinal mucosa is directly related to intestinal health and overall immune function. By adopting proactive lifestyle adjustments and sensible dietary management, we can effectively protect the intestinal mucosa, prevent leaky gut syndrome, and maintain healthy intestinal function, thereby promoting overall health and well-being.