Glutamine

About this supplement

Glutamine: The Body's Most Abundant Free Amino Acid

Glutamine is the most abundant free amino acid in the human body and one of the 20 standard amino acids in human physiology. While classified as non-essential — meaning the body can synthesise it — it is considered conditionally essential because demand can exceed production capacity under certain circumstances. Glutamine is found in the highest concentrations in skeletal muscle, which acts as both the primary site of glutamine synthesis and its main reservoir. It serves as a primary fuel source for rapidly dividing cells, particularly intestinal epithelial cells, and is involved in nitrogen transport between tissues, acid-base balance, and gluconeogenesis. Dietary sources include animal proteins, legumes, and dairy products, though glutamine is also the most widely used amino acid supplement in both sports nutrition and clinical nutrition contexts.

Pure Formula, Transparent Label

L-GLUTAMINE contains one ingredient: L-glutamine. No excipients, no bulking agents, no anti-caking agents, no flavourings. The L-form is the biologically active form of glutamine — the form present naturally in food proteins and in the body. Everything on the label is the product; nothing in the product is missing from the label.

5g Per Serving

Each level scoop delivers 5g of L-glutamine, consistent with the doses used across the research literature. At 60 servings per 300g container, this is a two-month supply at one serving per day.

Frequently asked questions

How many servings are in the container?

60 servings of 5g each — a two month supply at the recommended dose of one serving per day.

What does unflavoured mean in practice?

L-glutamine powder has a mild, largely neutral taste. It dissolves easily into water, juice, or any other cold beverage without significantly affecting the taste or texture. It can also be mixed into food.

Why is there only one ingredient?

The formula is designed to deliver pure L-glutamine without anything additional. No fillers, no anti-caking agents, no flavourings. For people who want glutamine and only glutamine, a single-ingredient formula is the cleanest option.

What is the difference between L-glutamine and glutamine?

Amino acids exist in two structural mirror-image forms — L and D. The L-form is the biologically active form found in food proteins and synthesised by the body. All dietary and supplemental glutamine is L-glutamine; the distinction is typically stated for clarity on the label.

Can I take L-GLUTAMINE alongside other GetTested supplements?

L-glutamine is an amino acid with no known interactions with vitamins or minerals at standard supplemental doses. It can be taken alongside other GetTested products. If you are taking medication or have a medical condition, consult a healthcare professional before use.

Who should not take L-GLUTAMINE?

Do not exceed the recommended daily dose. Not recommended as a substitute for a varied and balanced diet. Keep out of reach of young children. Consult a healthcare professional before use if you are pregnant, breastfeeding, taking medication, or have a kidney or liver condition.

How should I store it?

In the original sealed packaging, in a dry place away from light at +5 to +25°C.