Name: L-Glutamine Boost | Amino Acid for Gut & Muscle Support UK
Brand: Fashionfitz
SKU: sn0181
Price: 11.99 GBP
Availability: InStock
Rating: 4.3 (3 reviews)

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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.

Shipping Info

Orders are processed within 24–48 hours.

UK Delivery: 5–7 Business Days

Europe Delivery: 5–7 Business Days

USA Delivery: 5–7 Business Days

Australia Delivery: 5–7 Business Days

Tracking details are sent once your order ships.

Return

You can request a return within 30 days of delivery for peace of mind. Returns are quick and self-served through your customer account. Items must be unused and returned in their original packaging. Once your return is received and inspected, your refund will be processed promptly. Original shipping fees are non-refundable.

To return an item, log in to your account, select your order, and click “Request return”. Follow the on-screen steps and our team will take care of the rest.