L-Glutamine is the most abundant amino acid in the human body and is considered conditionally essential—meaning that while your body can normally produce it, during times of illness, high stress, toxic overload, or physical trauma, demand can far exceed supply. This makes targeted supplementation extremely valuable.

For digestive health, L-Glutamine plays a central role. It is the primary fuel source for enterocytes—the cells lining the small intestine. These cells are responsible for nutrient absorption and for maintaining the “tight junctions” that form the gut’s protective barrier.

When these tight junctions weaken—a condition often referred to as increased intestinal permeability or “leaky gut”—harmful substances such as toxins, microbial fragments, and undigested food particles can pass into the bloodstream, triggering systemic inflammation and contributing to a wide range of health issues from autoimmune flares to skin problems and fatigue.

How L-Glutamine Supports Recovery

• Rebuilds gut barrier integrity – fuels cell regeneration, helping to reseal microscopic leaks in the intestinal wall.

• Reduces inflammation – helps calm overactive immune responses within the gut lining.

• Supports immune resilience – since nearly 70% of the immune system resides in the gut, a stronger barrier means better defence.

• Enhances nutrient absorption – a repaired gut lining allows for more efficient uptake of vitamins, minerals, and amino acids.

L-Glutamine in the Flush GBI Formula
In Flush GBI, L-Glutamine works synergistically with bentonite clay, bicarbonate of soda, and milk thistle to help not only remove irritants from the gut environment but also to repair and restore after the cleansing process. This ensures that while toxins and waste are expelled, the gut lining is left stronger, more resilient, and better able to resist future damage.

By including L-Glutamine, Flush GBI doesn’t just aim for a short-term cleanse—it supports long-term digestive wellness, helping users feel lighter, more energetic, and better nourished from the inside out.