Peak Supps L-Glutamine Powder | 500 g

Peak Supps L-Glutamine Powder is a pure single-ingredient supplement in a 500 g tub, supplying the amino acid L-glutamine to support muscle recovery after training, the lining of the digestive tract and immune function. Glutamine is the most abundant amino acid in blood plasma and skeletal muscle, and its stores fall after hard physical effort and during periods of physical stress. The virtually flavourless powder dissolves into water, juice or a protein shake without changing the taste, and a 500 g tub allows the amount to be adjusted flexibly to body size and training volume.

What is L-glutamine?

L-glutamine is an amino acid classified in nutrition science as conditionally essential, meaning the body synthesises it on its own under normal conditions but cannot cover its needs during heavy exertion, illness or injury, at which point dietary or supplemental intake becomes necessary. It makes up the largest share of free amino acids in skeletal muscle and blood plasma, and its structure carries two amine groups, which is what makes it the body's principal nitrogen carrier between tissues.

Benefits of L-glutamine

• Post-training recovery support: Muscle glutamine drops after hard effort, and replacing it supports the return of stores to their usual level.
• Gut lining support: The cells lining the intestine depend on glutamine as a primary fuel, its best known use outside sport.
• Immune support: Lymphocytes and macrophages consume glutamine at a high rate while they are active.
• A building block for protein: Glutamine is incorporated into the proteins and enzymes built inside the cell.
• Nitrogen balance support: Glutamine shuttles nitrogen between tissues and takes part in clearing ammonia.
• Pure powder, no additives: Plain L-glutamine powder allows the amount to be dialled in precisely with nothing else in the tub.
• Suitable for vegetarians: The powder suits vegetarian and vegan diets.

How L-glutamine works in the body

L-glutamine acts as a direct cellular fuel and not merely as a building block: rapidly dividing cells, above all the epithelial enterocytes lining the intestine and the immune cells, oxidise it for energy rather than relying on glucose alone. Inside the cell the enzyme glutaminase converts glutamine into glutamate, which in turn is a precursor for glutathione, the most important intracellular antioxidant, and also feeds the Krebs cycle by way of alpha-ketoglutarate. Glutamine additionally carries the amine group from muscle to the liver and kidneys, where it is used in acid-base regulation and ammonia clearance.

What sets this product apart

Peak Supps L-Glutamine Powder is a single ingredient with no flavourings, sweeteners or bulking agents, so the entire 500 g in the tub is the amino acid itself. The powder form gives a flexibility capsules cannot: the amount is measured by spoon to suit body weight and training load, and split across more than one serving a day without swallowing a large number of capsules to reach the same intake. Its neutral taste and near-absent aroma let it dissolve into any drink or shake without affecting the flavour.

Who is this product for?

• Weight trainers and bodybuilders looking to support recovery between sessions.
• Endurance athletes such as runners, swimmers and cyclists with high training volumes.
• Anyone focused on digestive health looking for nutritional support for the gut lining.
• People on a diet low in animal protein wanting to raise their amino acid intake.
• Anyone who prefers powders to capsules for flexibility in adjusting the amount.

How to use

Dissolve L-glutamine powder in around 300 ml of water or fruit juice, shake well and drink. The daily amount can be split across several servings spread through morning, afternoon and evening, or concentrated immediately after training. The powder is hygroscopic, so close the tub tightly and keep it in a cool, dry place away from steam to preserve the texture of the powder.

Product details

• Form: powder
• Weight: 500 g
• Ingredient: L-glutamine
• Flavour: unflavoured
• Brand: Peak Supps, United Kingdom

Frequently asked questions

When is the best time to take L-glutamine powder?

L-glutamine powder can be taken at any time of day, and the most common timing is straight after training, when muscle glutamine stores have fallen. People targeting digestive support usually prefer to split the amount into servings spread through the day, away from large meals.

Can L-glutamine be mixed with other supplements?

L-glutamine powder is neutral in taste and dissolves into water, juice and protein shakes without altering the flavour, so it is commonly mixed with whey protein or creatine in the same drink. Stir it thoroughly before drinking, as it tends to settle at the bottom of the glass.

What is the difference between glutamine and glutamate?

Glutamine is an amino acid carrying two amine groups, while glutamate is the acidic form produced from it inside the cell by the enzyme glutaminase. The conversion between them is a normal part of cell metabolism, and this supplement provides the first form, L-glutamine.

Caution

Not for pregnant or breastfeeding women or under 18s; consult a doctor if taking chronic medication or with liver or kidney problems.