Also known as: Glutamine
L-Glutamine is the most abundant amino acid in the body, playing essential roles in gut integrity, immune function, and muscle recovery. Demand increases significantly during periods of physical stress, illness, or intense exercise.
L-Glutamine is a conditionally essential amino acid that constitutes roughly 60% of the free amino acid pool in skeletal muscle. It serves as a primary fuel source for enterocytes (intestinal cells) and immune cells, particularly lymphocytes and macrophages. During catabolic states such as surgery, burns, sepsis, or prolonged intense exercise, plasma glutamine levels can drop by 40–50%, impairing immune function and gut barrier integrity. Supplementation has been extensively studied in clinical settings for reducing hospital infections and in sports nutrition for supporting recovery. It also plays a role in nitrogen transport between tissues and serves as a precursor for nucleotide synthesis.
L-Glutamine is the primary fuel for intestinal epithelial cells and helps maintain tight junctions, reducing intestinal permeability (leaky gut).
Glutamine is critical fuel for lymphocytes and macrophages. Supplementation during critical illness or heavy training may reduce infection rates.
Supplementation may reduce exercise-induced muscle soreness and accelerate glycogen resynthesis, although results are inconsistent in well-nourished athletes.
Split into 2–3 doses, ideally on an empty stomach
Higher doses up to 30 g/day are used in clinical settings for critically ill patients.
Immediately after exercise
Can be mixed with a protein shake or taken separately.
High-dose supplementation and flexibility
Convenience and travel
No product recommendations yet.
No reviews yet. Be the first to share your experience!