INTERNATIONAL PROTEIN GLUTAMINE

INTERNATIONAL PROTEIN GLUTAMINE

Glutamine is the most abundant amino acid in human muscle tissue, making up roughly 60% of the total free amino acid pool in skeletal muscle. During intense or prolonged training, glutamine is depleted faster than the body can synthesise it — a state that can compromise muscle protein synthesis, impair immune function, and slow gut recovery. Supplementing with L-glutamine post-training helps restore these depleted levels, supporting the recovery processes that allow training to be productive rather than just cumulative stress.

International Protein's glutamine is produced through a natural fermentation and purification process rather than synthetic extraction. The practical difference for the end user is significant — naturally fermented glutamine has a noticeably cleaner flavour with no metallic aftertaste, which is a common complaint with synthetically derived glutamine powders. It also results in a higher purity end product.

Beyond muscle recovery, glutamine has a well-established role in gut lining integrity — it is the primary fuel source for intestinal epithelial cells and supports the tight junctions that maintain the gut barrier. For athletes training at high intensity or anyone with digestive sensitivity, this makes glutamine a genuinely multi-purpose supplement rather than just a recovery add-on. One of the reviews here notes meaningful improvement in IBS symptoms — consistent with the documented gut health benefits of daily glutamine supplementation.

The product is 100% pure L-glutamine with nothing else added. It is gluten-free, animal-free, plant-based, and suitable for vegans — a low-allergy option that can be added to any shake, protein powder, or consumed in water without interfering with flavour.

Take 1.9g (approximately half a teaspoon) immediately after training. Mix into water, a protein shake, or any preferred beverage.

Warning: Not suitable for children under 15 years of age or pregnant women. Should only be used under medical or dietetic supervision. This product is not a sole source of nutrition and should be consumed in conjunction with a nutritious diet and an appropriate training or exercise programme.