L-Glutamine Boost | Amino Acid for Gut & Muscle Support UK
L-Glutamine Boost — Pure Amino Acid for Gut Lining, Muscle Recovery & Immune Health
L-Glutamine is the most abundant amino acid in the human body and the primary fuel source for intestinal epithelial cells — the cells that line your gut. Despite its abundance, glutamine levels can become depleted during intense exercise, illness, stress or periods of digestive distress. L-Glutamine Boost delivers pure pharmaceutical-grade L-Glutamine in a convenient daily capsule, supporting gut integrity, muscle recovery and immune resilience simultaneously.
Why You'll Love It
- Pure L-Glutamine — no fillers, binders or unnecessary additives; pharmaceutical-grade amino acid in its most bioavailable form
- Gut lining support — L-Glutamine is the primary fuel for enterocytes (gut lining cells), supporting tight junction integrity and reducing intestinal permeability ("leaky gut")
- Muscle protein synthesis — conditionally essential amino acid that supports muscle repair and recovery after intense training
- Immune support — rapidly dividing immune cells also use glutamine as their primary fuel; supplementation supports immune cell production during times of physical or psychological stress
- Recovery support — particularly valuable during illness recovery, after surgery, or during periods of intense athletic training
- 90 vegan capsules — three-month supply of daily gut and muscle support
Key Ingredient
L-Glutamine (Pharmaceutical Grade) 500mg per capsule · Vegetable Cellulose Capsule
How to Use
Take 2–3 capsules daily with water. For gut health, take on an empty stomach. For muscle recovery, take post-workout. For immune support during illness or antibiotic recovery, take as directed by your healthcare provider. Not recommended during pregnancy without GP guidance.
Does L-Glutamine help with leaky gut?
Yes — L-Glutamine is the primary nutrient studied for supporting tight junction proteins that maintain gut barrier integrity. Multiple clinical studies and practitioners specialising in intestinal permeability recommend L-Glutamine as a foundational supplement for gut lining repair.
Can athletes benefit from L-Glutamine?
Yes. Intense exercise depletes plasma glutamine levels significantly. Supplementation supports faster muscle repair, reduced soreness and maintained immune function — particularly important for endurance athletes who are susceptible to immune suppression after heavy training.
Is L-Glutamine the same as MSG (monosodium glutamate)?
No. L-Glutamine and glutamate (the compound in MSG) are different. L-Glutamine is an amino acid and the body's most abundant nitrogen transporter. MSG is the sodium salt of glutamic acid, a flavour enhancer. They are structurally related but functionally distinct.
Is L-Glutamine Boost vegan?
Yes. The L-Glutamine is produced via fermentation using plant-derived substrates, and the capsule is vegetable cellulose. It is certified vegan and vegetarian.
- Standard UK (2–5 days) — free over £75, otherwise £3.99
- Express UK (1–2 days) — £5.99
- International — calculated at checkout
- 30-day easy returns · unworn with tags attached
All measurements in CM. When between sizes, size up.
| UK | EU | US | Bust | Waist | Hips |
|---|---|---|---|---|---|
| 6 | 34 | 2 | 80–83 | 61–64 | 87–90 |
| 8 / S | 36 | 4 | 84–87 | 65–68 | 91–94 |
| 10 / M | 38 | 6 | 88–91 | 69–72 | 95–98 |
| 12 / L | 40 | 8 | 92–95 | 73–76 | 99–102 |
| 14 / XL | 42 | 10 | 96–99 | 77–80 | 103–106 |
| 16 | 44 | 12 | 100–103 | 81–84 | 107–110 |
All measurements in CM. Measure over underwear. When between sizes, size up.
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