L-Glutamine supplement for gut health helps support immune function, delivering free-form L-glutamine to nourish intestinal barriers and keep you feeling your best. Each capsule delivers 500mg of free-form L-glutamine, the star ingredient for supporting immune cells and intestinal barrier health. Quality matters. Trust Now Foods. Simple daily support for gut health and immunity.

Available Sizes & Variants:

120 Veg Capsules – Vegetarian capsules offering flexible dosing.

Benefits & Features:

• Supports gut health and immune function.
• Free-form L-glutamine is the star ingredient that fuels intestinal cells.
• Designed for daily use between meals to maximise absorption and consistent results.
• Ideal during times of stress or physical strain, it provides a readily available nitrogen source to support immune cells and overall tissue health during challenging conditions for extra resilience.
• Suitable as a dietary supplement for adults seeking predictable daily support.

Now Foods' L-glutamine has earned trust for its clean, straightforward formula and transparent sourcing. The star ingredient serves as a key fuel for small intestine cells and a major nitrogen donor for immune system cells, helping maintain a healthy gut barrier. Research points to improved gut integrity and support during stress, and many customers report steady daily use fits seamlessly into a dietary supplement routine. It also pairs nicely with probiotics for a balanced gut environment.

Rice flour, cellulose (capsule) and magnesium stearate (vegetable source).

• GTIN: 733739000927
• Manufacturer: Now Foods
• Categories: Glutamine SupplementsGut Health SupplementsNew ArrivalsNOW Foods
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take one capsule one to three times daily, ideally between meals. 1 capsule\, 1-2 times a day after meals.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: L-Glutamine (Free-Form)

L-Glutamine is an amino acid available in a free-form supplement, recognised for its role in normal bodily functions and tissue support.

This formula uses L-Glutamine in its free-form form as the sole active ingredient, delivered in a vegetarian capsule. It is considered a conditionally essential amino acid that supports immune function and acts as a major nitrogen transporter, providing a primary fuel source for rapidly dividing cells.

What Does L-Glutamine Do?

L-Glutamine participates in supporting intestinal barrier function and maintains nitrogen balance, while serving as energy for enterocytes and immune cells, as described in EFSA-aligned evidence and related literature.

Research suggests that supplementation can contribute to brain health through its role in the glutamate transmitter system, with findings from Dr. Thompson of New York University School of Medicine indicating a neurotransmitter precursor function linked to neuronal health.

This product is not intended to diagnose, treat, cure, or prevent any disease.

NOW Foods is our go-to partner for L-Glutamine because of a clear alignment with Welzo's manufacturing standards and commitment to reliable, consistent ingredient sourcing. This brand was carefully evaluated by our expert team of doctors, nurses, and nutritionists for compliance with how we verify ingredient quality, ensuring their practices meet Welzo’s rigorous quality expectations in the UK market.

We selected NOW Foods because their L-Glutamine is delivered as a free‑form 500mg capsule with few inactive ingredients, reflecting a straightforward product design that supports predictable dosing between meals. This product fit aligns well with the category as a conditionally essential amino acid, where stability and clarity of ingredients help maintain consistency for consumers seeking a reliable supplement option.

Our partnership recognises NOW Foods' ability to support Welzo’s focus on safety, transparency, and accessibility. This brand stood out in our evaluation for its simple formulation, making quality checks clear and ongoing partnership under our established vetting process.